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Jun 12

By Shamsul Arafin

On the Wednesday morning, CLEO 2014 started with an excellent plenary talk on Fibers and the Future given by the inventor of erbium-doped fiber amplifier, David Payne (University of Southampton, UK), which featured the recent advancements and developments of optical fibers and its associated technologies such as fiber lasers, modulators, detectors or its relevant applications in telecoms and sensing. In his presentation, he showed different type of novel fiber design concepts including multielement fiber, multi-core fibers, anti-resonant hollow core fibers and the pros and cons of each design in terms of the transmission capacity, cross-talk noise reduction capability and suitability of interconnection technologies.

After the Plenary Session, CLEO: Market Focus program continued like yesterday which provided a platform to discuss about Operational Strategies for the Laser and Photonics Industry. The session, conducted by, Scott Dunbar, (Chief Operating Officer, AdValue Photonics, USA), started with a reasonable number of audiences and primarily addressed four successful companies’ operational strategies which are mainly based on in-house vs external manufacturing and on-shore vs. off-shore manufacturing. The first presentation was made by Mark Holman (A.T. Kearney, USA), covering the value-chain, levels and abilities in outsourcing/off-shore manufacturing for the photonic components, the unique challenges to realize such components due to the necessity of sophisticated cleanroom/fabrication facilities, high-skilled workers, qualities, etc. compared to standard electronics as well as the best practices to ensure corporate success. The next speaker, Nat Mani (CEO, Bestronics, USA) described the merits and demerits of contract manufacturer (CM) vs original equipment manufacturer (OEM) and explained how his company has become successful out of in-house/ on-shore manufacturing strategies. Then Kurt Weingarten (JDSU, Switzerland) introduced the strategies for his Time-Bandwidth products, a provider of high-powered and ultrafast lasers for the industrial and scientific markets. Finally, Andrew Willse (Director of Director of DPSS operations, Coherent, USA) described the effectiveness of outsourcing/off-shore manufacturing strategies by introducing several operational best practices for a successful Dual-Factory implementation.

Look for more  information on hot topic research tomorrow.

Jun 11

By Howard Lee

Today is a great day start with two plenary sessions from Gerhard Rempe and Larry Coldren, followed by whole afternoon of technical sessions, conference reception and poster sessions in the evening.

To conclude what I found exciting in the technology session and posters, I highlighted some of the works in the following.

Step forward to compact plasmonic nanocircuit

Prof. Min-Kyo Seo from KAIST talked about their work from Prof. Mark Brongersma at Stanford University on making an electrically driven plasmonic nanocirucit. They experimentally demonstrated an electrical pumped plasmonic light-emitting diode (LED)(emitting from a semiconductor quantum well) which is directly integrated to a plasmonic slot waveguide circuit with different functionalities such as splitting, freespace coupling and directional coupling. Although the efficiencies of the electrical driven LED and the coupling from the LED source to the plasmonic waveguide are not high (with coupling efficient of ~ 10 % to the waveguide) and the light source is not coherent, the work is an important step forward for future plasmonic circuit where the light source is electrically generated directly in the nanocircuit. Their result is published in March issue of Nature Photonics. (STu1M)[Nature Photonics 8, 244 (2014)].

Step forward to compact plasmonic nanocircuit
(Left) Schematic showing an integrated, electrically driven optical nanocircuit composed of three-dimensional slot-waveguide components, including two ultracompact splitters, a directional coupler and slot antennas. (Right) The nano-LED, with the quantum well located between the two red arrows. (STu1M)[Nature Photonics 8, 244 (2014)].

Poster Sessions: Broadband epsilon-near-zero metamaterials with gain media

Dr. Sun from Missouri University of Science and Technology discussed their theoretical work to me on designing a broadband epsilon-near-zero (ENZ) material (JTu4A.33). Their design of ENZ material based on a step-like metal-dielectric multilayer structures (see figure below) and he also discussed the use of gain material to obtain a broadband ENZ material with relative low loss. Although the structure is extremely difficult to fabricate (or even impossible), the work show an interesting approach to achieve a broadband ENZ material which would be useful for designing low loss metamaterial. Sun said that they are further working on the design of such ENZ metamaterial using step-like arrangement of nanoparticles, which would open up an easier and more realistic way for fabrication such material.

Broadband epsilon-near-zero metamaterials with gain media
(Left) Schematics of the proposed broadband ENZ meta-atoms. (Right) The simulation retrieved effective permittivity of the single gain meta-atom (solid curves) and the single non-gain meta-atom (dashed curves).[JTu4A.33]

Check back tomorrow to hear about more exciting highlights at CLEO: 2014.


Jun 11

By Shamsul Arafin

The third day of CLEO: 2014 started with the Honorary Award Distribution Ceremony which was followed by Plenary Sessions, consisting of two talks. The first one was on Quantum Coherent Networks, presented by Gerhard Rempe from Max-Planck-Institut fur Quantenoptik, Germany. Rempe’s talk initially covered the fundamentals of quantum-coherent networks, an exciting but challenging field of science and technology which allows a new approach to the processing of information for long-distance quantum communication and large-scale quantum simulation applications. He then described how Fabry-Perot cavity quantum electrodynamics with single-atoms trapped in high-finesse optical resonators could be employed for the realization of such quantum networks. The second talk, titled as Photonic Integrated Circuits as Key Enablers for Datacom, Telecom and Sensor Systems, given by Larry A. Coldren from UC-Santa Barbara, USA, addressed that why PICs are desirable for modest to high volume communication, sensing and instrumentation functions, where size, weight, power and cost are of major concerns.


Audience attending CLEO symposium


The special symposium on Laser Processing for Consumer Electronics included an invited talk from Keiji Nomaru, Disco Corporation, Japan that addressed the use of lasers in their semiconductor manufacturing process, such as grinding, cutting and polishing. In his presentation, he discussed the benefits of utilizing ultrafast lasers in the processing and microfabrication of the sapphire wafers with a precise process depth-control and a good cutting-surface quality. Also, Manjusha Mahendale from Rudolph Technologies, USA drew a crowd with her invited talk on Opaque Film Metrology using picosecond ultrasonic laser sonar (PULSE) Technology that is currently being used for the thickness and density evaluation of metal and opaque films as well as for the characterization of multi-layer bumps in advanced packaging applications.

On tap tomorrow, more symposiums and another great plenary.

CLEO: 2014 is being held 8-13 June 2014 in San Jose, CA.



Jun 10

The San Jose Convention CenterBy Howard Lee

I arrived to the nice city of San Jose to attend the CLEO 2014 conference for the first time. Upon entering the convention center, I found a sea of people at the front desk getting conference materials and registering. Despite the crowd, everyone looked excited about the program today! After making my way through all the people, I headed over to session SM2N “Modes in fibers”.

Studying Optical activity in photonic crystal fiber

One of the exciting talks of the session is presented by Dr. Gordon Wong from Philip Russell’s group in Max Planck Institute for the Science of Light in Germany (which is also the group I obtained my PhD from). Gordon presented their latest results on studying optical activity (namely circular birefringence and circular dichroism (CD)) in a special kind of fiber, which is helically twisted photonic crystal fiber (PCF). Different from other metallic spiral plasmonic structures, the twisted PCF provide a novel platform to study light properties in a twisted space with relatively long interaction length where metallic structure cannot be achieved. In such twisted fiber, additional phase matching is allowed to couple the core mode to the orbital angular momentum resonances, leading dips in transmission. At the resonance, they observed strongly enhanced circular dichroism. The important point here is that the CD could potentially be enhanced by varying the twisted rate and the fiber’s microsctructure, providing extra degree of freedom for altering the angular optical properties without any metal or nanofabrications required. (SM2N.1)[Phys. Rev. Lett. 110, 143903 (2013), J. Opt. Soc. Am. B 30, 2921–2927 (2013)].

Measured (colored dots) and calculated (solid curve) response in the vicinity of an OAM resonance

(Left) Measured (colored dots) and calculated (solid curve) response in the vicinity of an OAM resonance at 770 nm for linearly polarized input light and a sample length of 9 mm. (a) The polarization rotation angle ψ measured experimentally (green dots) and calculated numerically. The rotation angle of the core light, calculated analytically using symmetry properties and perturbation theory [1,2], but ignoring OAM resonances in the cladding, is shown as a dashed line. (Right) Schematic of the twisted photonic crystal fiber. [SM2N.1]

Sensing for chiral molecule using metasurfaceSensing for chiral molecule using metasurface

A really interesting talk I found in the afternoon was presented by Dr. Yang Zhao (FM3K.6). As there is serious demand to determine the chirality of molecules for achieving an enantiomer-pure chiral drug, many researches have been carried out to use chiral EM wave (optical chirality) for sensing such chiral molecules. However, when the amount of molecules is small, using optical chirality for sensing is normally not efficient. Zhao discussed in her talk how they use a near field chiral enhancement in a metallic metasurface to detect those molecules through circular dichroism (CD). The multilayer metasurface is made of gold by multiple Ebeam lithography steps. The second layer of pattern is twisted with certain angle with respect to the first layer (see figure on right), which leads to the origin of the CD. Using an analytical approach together with a careful design and fabrication of the metasturcture, they demonstrated a measurement of the CD signal for monolayer of protein and shows the metasurface providing an ultra-sensitive probe to enhance CD measurements, in which typical optical materails/structures cannot be achieved.

My day has not disappointed so far – I am looking forward to what the rest of the day has to offer.



Jun 09

By Shamsul Arafin

shortcoursesetting14Warm greetings from San Jose, CA. CLEO: 2014 has just gotten off to a great start with a number of short courses on a wide range of hot topics including ultrafast optics, nonlinear optics, metamaterials and nanophotonics. I was really excited about this event for so many reasons- all of which I’m not sure can fit in this one post. The main reason, of course, was to get familiar with current, groundbreaking research on my areas of expertise as well as to increase my industry knowledge on the latest advancements of these particular fields.

There are a number of enthusiastic attendees who showed up early morning for the short course, titled as Nanophotonics: Physics and Techniques. This course was conducted by a leading industry and academic expert with a great personality. He is none other than Prof. Axel Scherer from Caltech. It was really one of the most amazing and informative scientific talks I have ever attended.

What did he cover in his lecture? Prof. Scherer started his presentation describing the necessity of the device miniaturization and its current status worldwide. He then presented several types of micro/nano-resonators to realize high­performance lasers. He also explained how the basic concepts of microwave engineering discovered back to 1950s lead him to develop such resonators in optics/photonics areas. One of the greatest parts of his course which I was amazed with is the contribution he has/will made/make in the area of silicon photonics and its integration with the electronic circuits. Not only this, his lecture also covered how indirect bandgap material, e.g. silicon could be turned into direct bandgap and its evidence by showing his latest results on silicon LEDs. Wow! Isn’t that fascinating?

On the same day, the point of another great attraction was the short course on ‘NanoCavity Quantum Electrodynamics (QED) and Applications’ taught by Prof. Jelena Vuckovic from Stanford. In fact, NanoCavity QED is an exciting field of science and technology that aims to better understand the effect of solid-state light-matter interfaces in order to develop a scalable architecture for quantum communication. After having it highlighted and explained the fundamentals of atom-electromagnetic field interaction, Prof. Vuckovic showed some relevant results her group achieved on nanocavity QED by employing InAs/GaAs quantum dots in photonic crystal nanoresonators. This was a pretty interesting talk, indeed.

Looking forward to the main technical program starting today.

CLEO: 2014 runs 8-13 June 2014 at San Jose Convention Center, CA, USA. Registration is available onsite.


May 13

by Sheng Liu

Sandia-National-Laboratories-2As the highest level optics/photonics general conference, CLEO is not just for universities, but also heavily participated by national laboratories in USA. This year at CLEO, Sandia National Laboratories will present 26 oral and poster presentations. Notably, 12 (total 17 including coauthored papers) of these will be presented by researchers from the department of Applied Photonic Microsystems, an impressive number from a small department comprised of less than 20

people including staff scientists, post-docs, and student interns.

Some highlights of our papers that will be presented in this year’s CLEO are:

FTu3C.7. Strong Light-Matter Coupling in Mid-Infrared Monolithic Metamaterial  Nanocavities
Alexander Benz; Salvatore Campione; Sheng Liu; Ines Montano; John F. Klem; Michael B. Sinclair; Filippo Capolino; Igal Brener

FTu1C.6. Electrically Tunable Mid-Infrared Metamaterials Based on Strong Light-Matter Coupling
Alexander Benz; Ines Montano; John F. Klem; Igal Brener

FTu1K.5. Apertureless Optical Near-Field Imaging of Localized Modes of Silicon Nanodisks
Terefe G. Habteyes; Isabelle Staude; Katie E. Chong; Jason Dominguez; Manuel Decker; Andrey Miroshnichenko; Yuri S. Kivshar; Igal Brener

FF2C.3. Maximizing Strong Coupling between Metasurface Resonators and Intersubband Transitions
Salvatore Campione; Alexander Benz; John F. Klem; Michael B. Sinclair; Igal Brener; Filippo Capolino

STh4M.7. Wavelength Control of Resonant Photonic Modulators with Balanced Homodyne Locking
Jonathan A. Cox; Anthony L. Lentine; Daniel J. Savignon; Douglas Trotter; Andrew Starbuck

SF2M.6. Coherent Excitation of Multiple Nano-opto-mechanical Modes in Silicon with Ultrafast Time-domain Spectroscopy
Jonathan A. Cox; Aleem Siddiqui; Peter Rakich; Robert L. Jarecki; Andrew Starbuck

FTh4C.3. Investigation of Quantum Dot—Quantum Dot Coupling at High Hydrostatic Pressure
Sheng Liu; Binsong Li; Hongyou Fan; Ting S. Luk; Michael B. Sinclair; Igal Brener

FF2C.6. Optical Magnetic Mirrors using All Dielectric Metasurfaces
Sheng Liu; Igal Brener; Jeremy B. Wright; Thomas Mahony; Young Chul Jun; Salvatore Campione; James Ginn; Daniel A. Bender; Joel R. Wendt; Jon Ihlefeld; Paul Clem; Michael B. Sinclair

STh1N.7. Ultra-Long Duration Time-Resolved Spectroscopy with Enhanced Temporal Resolution of High-Q Nano-Optomechanical Modes using Interleaved Asynchronous Optical Sampling (I-ASOPS)
Aleem M. Siddiqui; Robert L. Jarecki; Andrew Starbuck; Jonathan A. Cox

SM1M.2. Gallium Nitride Nanowire Distributed Feedback Lasers
Jeremy B. Wright; Salvatore Campione; Sheng Liu; Julio Martinez; Huiwen Xu; Ting S. Luk; Qiming Li; George T. Wang; Brian S. Swartzentruber; Igal Brener

SM2J.3. InGaN Quantum Dots for High Efficiency Blue and Green Light Emitters
Arthur J. Fischer; Xiaoyin Xiao; Jeffrey Y. Tsao; Daniel D. Koleske; Ping Lu; Jeremy B. Wright; Sheng Liu; George T. Wang

SW1G.3. Gallium Nitride Nanotube Lasers
Changyi Li; Antonio Hurtado; Jeremy B. Wright; Huiwen Xu; Sheng Liu; Ting S. Luk; Igal Brener; Steven R. Brueck; George T. Wang

Going through our papers, you will find out that all of our papers involve internal collaborations with other departments inside Sandia National Laboratories or external collaborations with universities or research laboratories within or outside USA. This is because of the extreme friendly collaborative environment and world class specialists here in Sandia National Laboratories. For example, staff scientist Igal Brener has 12 coauthored papers this year although he only has 4 post-docs and 1 student intern. Our collaborations with external universities/labs are boosted by The Center for Integrated Nanotechnologies (CINT), which is a joint center between Sandia National Laboratories and Los Alamos National Laboratories. CINT is a Department of Energy/Office of Science Nanoscale Science Research Center (NSRC) operating as a national user facility devoted to establishing the scientific principles that govern the design, performance, and integration of nanoscale materials.  It is a user facility with experts in variety of fields such as physics, chemistry, biology and computational science. Here in CINT, we have the world class cleanroom facilities open to both universities and industry. The best part is that it is free of charge, as long as you have a very good idea of how to use our facilities to do great science. We have staff scientists, postdocs and technologies here to train you how to use our facilities. Detailed information of CINT can be found here: http://cint.lanl.gov/


Sandia Doc. 2014-3947W

May 05

The CLEO team sat down with 2014 Chairs (Bill Munro and Roberto Morandotti, General Co-Chair and Program Co-Chair, Fundamental Science; Rene-Jean Essiambre and Craig Arnold, General Co-Chairs Science & Innovations and Eric Mottay, Program Co-Chair, Applications & Technology) for insight on this year’s esteemed Plenary Speakers. The Chairs also talked about why it is beneficial for technical attendees to stop by the CLEO: Expo, featuring over 300 leading companies from around the world.

CLEO Team:  Can you tell us a little about the Plenary Speakers this year?

Bill MunroI’m very excited about our plenary speaker, Gerhard Rempe, he is one of the world’s leading scientists in the field of quantum communication and quantum technologies. So he’s going to give a beautiful overview of this particular subject area with a talk on Quantum Coherent Networks; and this will lead nicely into the various symposiums that follow. Rempe comes from one of the most prestigious institutions in the world, the Max-Planck Institute, known for their fundamental science.  His accomplishments…are numerous.

Rene-Jean Essiambre:  We are very excited to have Professor Larry Coldren from the University of California at Santa Barbara to talk to us about photonic integrated circuits. Coldren is a very distinguished member of the scientific community. He is a member of the National Academy of Engineering and he has done tremendous contributions to the field. He’s going to talk about photonic integrated circuits at the plenary session. He will discuss the advantages of various integrated technologies and what needs to be done to add functionalities and make them more successful. Photonic integrated circuits have started to make significant commercial impact, and it seems to be destined to do more. This plenary talk is a great opportunity to hear from an expert in the field about challenges and future opportunities for photonic integrated circuits.

Chair is being interviewed by CLEO

OSA Senior Science Advisor interviews CLEO General Chair Rene-Jean Essiambre.

Eric Mottay:   The plenary speaker for Applications & Technology is Dave Payne of Southampton University; and, actually he might not remember but Dave Payne was my supervisor in my very first internship in my career in Southampton; and it’s a leading team which delivered pioneering work on fiber lasers.  Dave Payne is a great speaker, so I’m looking forward to this plenary talk (on Fibres and the future).

CLEO Team: We hear a lot about the Technical Program, but why should attendees also make their way over to the EXPO?

Roberto Morandotti:  I think it’s very important to go to the exhibit; and you may be surprised to hear this since my area is fundamental science but, we need to talk to Industry.  …. I’ve seen a trend which is very pronounced in Canada where I work, but also in the USA and the rest of Europe, in which the government would like us to work together …… to try to develop products together.

So, for me, it’s very important to go to the exhibition, not only to see what are the latest products, and what are the latest lasers and  if I can buy devices that can be used for new research, but also to see … how we can really use the technology or the science we are developing, which somehow is a bit abstract.. it is exciting to really create products that can influence the society, it can be used by the general public, and improve everybody’s life.  So because of this reason , it is becoming for me more and more important to attend these kinds of exhibits

Eric Mottay: The exhibition at CLEO is a further step from the path of science to real life applications.  We see the fundamental sessions of CLEO, application of technology basically showing where the industry will be in three to five years; and the exhibition shows where the industry is right now.  And, it’s a very unique way to get in touch with a number of our scientific customers because of their traction that CLEO has with the scientific community, but also with industrial customers looking into new applications, new processes.

Craig Arnold: Another really exciting trend that we’re having at CLEO this year and something that’s been going on for the past few years has been the interaction between the technical program and the trade show and exhibitors.  One of the really exciting things this year is the continuation of the market-focused program, as well as the technology transfer program.  ..This has been an opportunity for people who are working on technologies and working on science to see how that science and technology is transitioned from their research labs into the real world, so to speak.

So we have a number of interesting speakers coming from both universities, research labs, as well as from industry, to talk about their experiences; and that’s part of the larger program where we’re going to have exhibitors, as well as people developing technologies, talking on the trade show floor.  And this has been an exciting program development, not just for our attendees, but also for the companies and exhibitors that present; and it gives them an opportunity to really see what’s going on in the research field, and for the researchers to really see how their technologies are being applied in the real world.

Visit cleoconference.org for more information on the Plenary Program and Exhibit Hall Activities. CLEO: 2014 takes place 8-13 June 2014 in San Jose, CA, USA.

May 01

By Howard Lee

Search the CLEO: 2014 Online Program for exciting talks and more

Now that the CLEO technical program is finalized, it is really convenient to use the “Itinerary Planner (IP)” available on the CLEO website to search for the research talks that you might be interested in.  With IP, you can save all the talks you plan to attend and populate in a day by day format.  It is also very easy to search for old colleagues, friends, college-mates, etc. with IP and see whether they are an author presenting and attending CLEO: 2014 or not.

Since my research expertise is aligned with nanophotonics and plasmonics, I searched the conference program with the keyword “Plasmonics” and “Metamaterials”. I found that there are quite a few talks/posters which are related to that, with a total of 160 talks/posters this year (Plasmonics: 107, metamaterials: 53). Therefore, I expect I will have a really enjoyable and busy schedule at this year’s CLEO.

Photo of colleagues at conference

Colleagues and friends peruse the hard copy Conference Program. Take a peek at the online version before the conference.

My search of the online program/itinerary planner(IP) resulted in finding several topics and talks of interest, as outlined below:

Hyperbolic and Epsilon-Near-Zero Metamaterials

By making artificial materials with nanostructures which are smaller than the wavelength of light (metamaterial), the electromagnetic response of the material can be tailored and unusual optical properties can be observed in these materials. In the last 2-3 years, specific topics of hyperbolic and ENZ metamaterials have, in particular, attracted a lot of attention as light inside ENZ material experiences extremely large phase velocity and/or exhibits high local density of states, which enables unique optical functions such as tunneling of EM waves and enhancement of spontaneous emission. These metamaterials also have properties that make them ideal for nanoscale optical/quantum communication.

I found that there are several talks related to this topic, this year, that are worth attending. Selected talks are listed below:

Monday, 9th June

8:00am, FM1C.1. Wave Propagation in Magnetized Epsilon-Near-Zero Metamaterials Arthur Davoyan; Nader Engheta

 9:00 am, FM1C.5. Enhancement of Radiative Emission using a Hyperbolic Metamaterial Nano-antenna Caner Guclu; Ting S. Luk; George T. Wang; Michael B. Sinclair; Filippo Capolino

 9:45 am, FM1C.8. Visible-Frequency Unidirectional Transmission Device incorporating a Hyperbolic Metamaterial Ting Xu; Henri J. Lezec

 5:15pm, FM4C.6. Tunable hyperbolic metamaterials using metal-insulator transition in VO2 Harish Krishnamoorthy; You Zhou; Shriram Ramanathan; Evgenii Narimanov; Vinod M. Menon


Tuesday, 10th June

12:30pm, FTu1C.6. Electrically Tunable Mid-Infrared Metamaterials Based on Strong Light-Matter Coupling Alexander Benz; Ines Montano; John F. Klem; Igal Brener

 4:30pm, FTu3C.1. Stimulated emission of SPPs on top of hyperbolic metamaterials John K. Kitur; Thejaswi Tumkur; Lei Gu; Mikhail A. Noginov

 6:00pm, FTu3C.6. Directional emission from quantum dots in a hyperbolic metamaterial Tal Galfsky; Harish Krishnamoorthy; Ward D. Newman; Evgenii Narimanov; Zubin Jacob; Vinod M. Menon

 Wednesday, 11st June

11:00am, FW1C.2. Nanopatterned Multilayer Hyperbolic Metamaterials for Enhancing Spontaneous Light Emission Dylan Lu; Lorenzo Ferrari; Jimmy J. Kan; Eric E. Fullerton; Zhaowei Liu

 11:30am, FW1K.2. Far field characterization of light propagation in hyperbolic metamaterial with multi metal-dielectric layers Xiangang Luo

 1:30pm, JW2A.120. Experimental Demonstration of Near-Infrared Epsilon-Near-Zero Multilayer Metamaterial Slabs Changyu Hu; Huixu Deng; Daniel Rosenmann; David A. Czaplewski; Xiaodong Yang; Jie Gao

Photonic Crystal Fiber

On the other hand, photonic crystal fiber (PCF), a special optical fiber with 2D micro-hollow structure running along the fiber, offers a unique platform with long interaction length and engineerable dispersion for studying of optical sciences, such as supercontinuum generation, optical sensing, frequency comb generation, gas-based nonlinear optics studies, optical tweezers, photochemistry, and so on.

There are also several very interesting invited/ contributed talks related to PCF in this year CLEO.  Here’s a glimpse of what’s being  presented:

Monday, 9th June

9:15am, SM1N.3. Ultra low-loss hypocycloid-core kagome hollow-core photonic crystal fiber for the green spectral-range applications Benoît Debord; Meshaal Alharbi; Aurélien Benoît; Madhoussoudhana Dontabactouny; Jean-Marc Blondy; Frédéric Gérôme; Fetah Benabid

9:45am, SM1N.5. Chalcogenide negative curvature hollow-core photonic crystal fibers with low loss and low power ratio in the glass. Chengli Wei; Robinson Kuis; Francois Chenard; Jonathan Hu

10:30am, SM2N.1. Optical Activity Enhanced by Orbital Angular Momentum Resonances in Helically Twisted PCFGordon K. Wong; Xiaoming Xi; Thomas Weiss; Philip St.J. Russell

1:30pm (Invited), SM3N.1. Tunable sources from the visible to vacuum-UV based on gas-filled hollow-core photonic crystal fibers John C. Travers; Ka Fai Mak; Alexey Ermolov; Francesco Tani; Philipp Hoelzer; Nicolas Joly; Philip St.J. Russell

2:30pm, M3N.4. Highly efficient wavelength conversion in CF4-filled hollow-core photonic bandgap fibers Lior Ben Yehud; Amiel Ishaaya

4:00pm, SM4N.1. Visible Light Stimulated Brillouin Scattering in Small-Core Photonic Crystal Fibers Robert I. Woodward; Edmund J. Kelleher; Sergei V. Popov; James R. Taylor

Wednesday, 11st June

11:00am, SW1E.3. Self-Compression to Sub-Cycle Regime in Kagome Hollow-Core Photonic Crystal Fiber Frédéric Gérôme; Tadas Balciunas; Coralie Fourcade-Dutin; Fan Guangyu; Tobias Witting; Alexander A. Voronin; Aleksei Zheltikov; G.g Paulus; Andrius Baltuska; Fetah Benabid

Thursday, 12nd June

3:00pm, FTh3B.4. Frequency translation via four-wave mixing Bragg scattering in Rb filled photonic band-gap fibers Prathamesh Donvalkar; Vivek Venkataraman; Stéphane Clemmen; Kasturi Saha; Alexander L. Gaeta

5:30pm, STh4N.4. 0.7 MW Output Power from Coherently Combined Q-switched Photonic Crystal Fiber Laser Boris Rosenstein; Avry Shirakov; Daniel Belker; Amiel Ishaaya

Friday, 13rd June

11:30am, SF2N.4. High energy pulse compression regimes in hypocycloid-core kagome hollow-core photonic crystal fibers Benoît Debord; Frédéric Gérôme; Meshaal Alharbi; Clemens Hoenninger; Eric Mottay; Anton Husakou; Fetah Benabid

There are definitely a lot of very exciting topics, too many to list here. Make sure you take the time to search the itinerary planner for your favorite talks of interest before coming to San Jose. See you there in less than 40 days!

To access the Online Conference Program/Itinerary planner visit the CLEO website. Obtain abstracts,  search by author,  keywords and more.



Apr 03

S&I 3: Semiconductor Lasers, is an integral part of the Science & Innovations technical program. Dan Wasserman, University of Illinois, Subcommittee Chair provides us with some insight on this year’s invited speakers, hot topics and trends in paper submissions.

Photo of Dan Wasserman CLEO S&I 3 Chair

Daniel M. Wasserman, S&I 3 Chair, CLEO: 2014

CLEO Team:              Can you review the talks that you got and were there any themes or any outstanding trends that you were able to discern?

Dan Wasserman:  This was another outstanding year for Semiconductor Laser submissions to CLEO. I think the whole committee was impressed not simply with the quantity of submissions, but more importantly the breadth and quality of these submissions.  I think that one of the trends we are seeing in the contributed submissions is a pushing of the accepted state-of-the-art for a wide range of semiconductor lasers, across a broad range of frequencies.

Many of the contributed talks will focus on ‘going big’: record output powers and high efficiency emitters.  We are seeing impressive examples of this at long wavelengths (mid-IR and THz) with Watt-level or greater powers, using a range of very clever approaches.  At shorter wavelengths, we will have exciting work demonstrating high power VCSELs and photonic crystal lasers.  Other talks focus on going small: nano-scale lasers and ultra-fast pulses.  Finally, we are very much looking forward to a number of papers focusing on integration of III-V laser materials with Si electronics and photonic integrated circuits.

Overall, S&I 3 will offer an impressive array of contributed talks, with a breadth and quality that is indicative of the very best in current semiconductor laser research.

CLEO Team:            Can you tell us a little bit about the Invited  & Tutorial Speakers for S&I 3?

Dan Wasserman: We are so honored to have a line-up of truly incredible speakers accept our invitations to present at CLEO: 2014.  Our tutorial, entitled “Dealing with Losses in Plasmonics and Metamaterials”, will be given by Professor Jacob Khurgin, from Johns Hopkins University, and will provide insight into a major challenge facing future nano-scale optoelectronics.  Anyone who has seen Prof. Khurgin present knows that we are in for a provocative and exciting tutorial!  Our invited talks are also quite exciting, and represent a broad cross-section of current cutting-edge semiconductor laser research.  Prof. Yoshi Yamamoto (Stanford/Tokyo) will be presenting exciting new results on electrically-driven exciton-polariton lasers and Dr. Richard Stevenson (Toshiba Research) will show the latest results on his group’s demonstration of quantum teleportation using entangled LEDs.  Prof. Geert Morthier (Ghent) will provide an overview of his group’s work integrating high-performance micro-lasers onto Si substrates for optical interconnect and logic applications, and Prof. Wolgang Stolz (Philipps University) will discuss his work on near-IR VECSELs grown by MOCVD.   Combined, our tutorial and invited speakers will provide an excellent picture of not only the cutting-edge state-of-the-art in semiconductor lasers, but a glimpse into what the future of semiconductor lasers may well look like!

CLEO Team:               Are there any talks, in particular, that you are looking forward to hearing? If so, why?

Dan Wasserman:       I am, of course, looking forward to all of our talks, it is going to be a very exciting conference this year.  That having been said, I am particularly excited to see recent results on high power long wavelength lasers in presentations from the Meyer group at NRL (high power emission from interband cascade lasers), the Botez and Mawst groups at Wisconsin  (leaky wave coupling of quantum cascade lasers for high power emission), and the Strasser and Unterrainer groups at TU Wien (demonstrating ~1Watt of power from THz quantum cascade lasers).  The demonstration of high power superluminescent emitters, from the Gmachl group at Princeton, will be another exciting presentation.  I will also be looking forward to presentations from Prof. Noda’s group (Kyoto) and Prof. Choquette’s group (UIUC) on high power (>1.5W) and coherently coupled photonic crystal lasers, respectively.  We are excited to have Prof Matsuo’s group (NTT) present recent results demonstrating electrically pumped photonic crystal lasers integrated onto Si substrates.  And finally, I am eager to see a pair of presentations from Prof. Keller’s group at ETH on ultrafast VECSELs and MIXSELs, respectively.                      

CLEO Team:               Thank you very much.

The CLEO Conference, sponsored by APS/Division of Laser Science, IEEE Photonics Society and the Optical Society received record breaking submissions in 2014. The Conference takes place in San Jose, CA, USA, 8-13 June 2014. Visit www.cleoconference.org for program and registration information.

Mar 21

Applications & Technology (A&T) is a key conference at CLEO: 2014, exploring the evolution of newly discovered technologies previously reported in CLEO: Science & Innovations as they are perfected and further developed to meet system and application requirements. New components, optoelectronics, and laser systems are demonstrated in real-world environments where innovative commercial technologies emerge.

Yu Chen, University of Maryland, Program Co- Chair provides an overview of this year’s A&T symposium and paper highlights.

CLEO Team:

Discuss the exciting lineup of symposia that are A&T related? What are some of the hot topics being covered?

Yu Chen:

This year we have organized a series of exciting symposia. The first two are focused on biomedical applications. The first one is Advances in Neurophotonics, organized by Drs. Nick Iftimia and Jin Kang. This symposium highlights the photonics technologies that enable mapping of brain function.  This is an important research area as highlighted by President Obama’s recent BRAIN Initiative. We have invited leaders in this field to share their frontier research. Topicscovered include optical coherence tomography and multi-photon microscopy for neuroimaging, high-resolution imaging of brain networks and diseases, and optogenetics.

Patient undergoing MEG. Wikipedia Commons

Patient undergoing MEG. Source: Wikipedia Commons

The second area of application is Molecular Imaging, which is an interdisciplinary area intersecting photonics technology and molecular medicine, with great potentials for early disease detection and personalized treatment. This year’s symposium, organized by Drs. Xavier Intes and Ali Azhdarinia, contains two sessions: one focuses on novel optical molecular imaging techniques, including near-infrared fluorescence imaging, Cerenkov radiation imaging, and photoacoustic imaging. The other session focuses on molecular probe development and clinical translation. The speakers are renowned scientists, clinicians, and industrial leaders that set the trend in this field.

The next two symposia are more technology oriented. The first one is Novel Light Sources and Photonic Devices in Optical Imaging, organized by Drs. Charles Lin, Nick Iftimia, and Ben Vakoc. This symposium highlights the advanced development of novel light sources and photonic technologies that enable biomedical imaging. Topics include novel light sources for nanophotonics-based OCT, as well as deep tissue multiphoton imaging and manipulation.

The next symposium has similar theme, but more focuses on Ultrashort Pulse Laser TechnologiesOrganizedby Drs. Ilko Ilev and Emma Springate, this symposium highlights the recent state-of-the-art development in ultrafast laser technologies for biophotonics and nanobiophotonics. Topics include ultrafast compact fiber lasers; tunable ultrafast visible, near- and mid-IR lasers; plasmonic nanobuble based integrated theranostics, and ultrafast laser induced ion beams for proton therapy.  

The next hot topic is Optofluidic Microsystems, organized by Drs. Ian White and Andreas Vasdekis. This symposium aims to highlight emerging trends in optofluidics and their application in microsystems.  This year’s program will feature an overview of the last ten years of optofluidics by one of the founding fathers of the field, Dr. Dmitri Psaltis, and will also project into the future by talks from current leaders in the field. Topics include optofluidic lasers and resonators, optofluidics for energy, and optofluidic particle manipulations.

CLEO Team:

What exciting papers did you receive for Applications & Technology?

Yu Chen:

We have a large affluence of papers for the light sources, resulting from the success of last year’s symposium on novel light sources. We also have papers focused on Neurophotonics, as stimulated by this year’s symposium. Our program includes new developments in OCT, multiphoton microscopy, and photoacoustic imaging, as well as clinical translation. Some of the example hot topics include adaptive optics for ophthalmology, point of care devices based on smart phones, minimally-invasive imaging technologies for disease diagnosis and therapy guidance, endomicroscopy, as well as multi-modal imaging combining OCT with fluorescence/confocal.

CLEO Team: Thank you

The CLEO Conference, sponsored by APS/Division of Laser Science, IEEE Photonics Society and the Optical Society received record-breaking submissions this year. The Conference takes place in San Jose, CA, USA, 8-13 June 2014.

For more information on CLEO: 2014 and the A&T program please visit www.cleoconference.org.


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