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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.

 

Mar 07

by David Norris,  Guest post

This is part 1 of a 3 part series on the Controlled Light Propagation Incubator meeting at OSA headquarters in Washington, DC

example of biomedical imaging

Example of Biomedical imaging -source: wikipedia commons

The application of adaptive optics techniques–namely, optical wavefront shaping and phase modulation–to correct aberrations arising from highly scattering and disordered media holds tremendous promise for in vivo fluorescence imaging of biological tissue, and in particular the functional imaging of neural circuits. This topic has experienced an explosion of research activity in recent years, driven in large part by funding and interest from the BRAIN initiative, the Presidential focus aimed at mapping and unlocking the inner workings of the human brain. Following previous Incubator meetings in Optogenetics and Adaptive Optics, the organizers see today’s meeting as a natural next step.

Read more>>

Re-posted from The Optical Society Blog

Feb 24

By Howard Lee

If you work in Optics and Photonics, more than likely you have heard about the CLEO US conference. I have been working on Optics and Photonics research for almost 10 years, and have heard from everyone in the community that CLEO is a great peer-reviewed conference. However, because of issues in the past with my visa, I have never been to the CLEO-US conference. This is one of the reasons why I’m very excited about attending CLEO-US this year!

I spent several years in Germany as a graduate student in Max Planck Institute for the Science of Light so I have been to CLEO-Europe twice in 2009 and 2011. The conferences were excellent, and I enjoyed almost everything there, including the short courses, tutorial talks, invited talks, poster sessions, welcome reception and the beer. (yes, German beer is definitely good).

Now I am in US working as a postdoc at California Institute of Technology, and have been invited as a scientific blogger for CLEO-US 2014 in San Jose this year. The first thing I looked up on the CLEO: 2014 official website is the short courses. This is the best place for you to learn something fundamental if you are not very familiar with a particular topic. Scanning through the list of the short courses provided, I find that we have very high-quality speakers lined up this year. As my research focuses are nano-photonics and plasmonics, I am particular interested in the courses of:SCoursePostcard

  • Silicon Photonic Devices and Applications from Michal Lipson (Cornell Univ.)
  • Transformational Optics from Ulf Leonhardt (Weizmann Inst. of Science in Israel)
  • Plasmonics from Mark Brongersma (Stanford Univ.)
  • MetaMaterials from Vladimir M. Shalaev (Purdue Univ.)
  • Quantum Cascade Lasers: Science, Technology, Applications and Markets from Federico Capasso (Harvard Univ.)
  • Nano Photonics: Physics and Techniques from Axel Scherer (Caltech)

Prof. Brongersma’s lectures are the only ones I’ve ever attended amongst the above. According to my personal experience, I would recommend you to attend his short course if you are interested in learning something on plasmonics. I have taken his short courses twice in CLEO-Europe. Prof. Brongersma always gives an excellent course from the basic knowledge to new and interesting ideas about plasmonics. Of course, I believe all courses will be excellent and the choice is all up to you depending on your preferred topic and research interest!

Other than the short courses, I suggest you also look up the titles of the tutorial and invited talks now and find out the exciting talks which are related to your field. I also look forward to seeing the full program schedules and at that time we can go through more carefully all the interesting contributed talks in different topics and all the events.

Let me know if you find any particularly interesting talks at CLEO this year.  I wish I could  attend all of them!  Luckily, CLEO is recording a significant portion of the CLEO technical program.  Full conference registrants can purchase on demand viewing of these talks as an option for only $45 when registering online.

By the way, my name is Howard Lee. I look forward to seeing you at CLEO: 2014 to discuss  the science and  research interests in photonics. Don’t forget to arrange for  registration, hotels, visa etc. in advance, as the US visa application may take 1-2 months depending on the country.

Jan 31

By Shamsul Arafin

Since its successful and effective arrival in 1967, the Conference on Lasers and Electro-Optics (CLEO) has emerged as one of the biggest leading platforms for the researchers to be updated with recent progress in research and technology, especially with the latest worldwide advancements in optics and laser science. During such a long journey, CLEO has maintained the international prominence through its tradition of unparalleled and long standing excellence and leadership in showcasing the most significant scientific research milestones from laboratory to marketplace. Like every year, CLEO: 2014 (8-13 June in San Jose, CA, USA) is  getting ready to show its real glamour and activities for downtown san josethe optics researchers all around the world.

Just a few words to introduce myself: I am Shamsul Arafin, a postdoc working at UCLA. My research expertise is primarily in the area of semiconductor lasers, nanophotonic devices and heteroepitaxial growth of III-V on Si. I am a official blogger for CLEO: 2014. There are plenty of reasons for my excitement about this conference. These are so many that I’m not sure whether I can fit them all into this post.

First of all, CLEO: 2014 will not limit itself only to feature high quality research in the areas of: QELS- Fundamental ScienceScience & Innovations and Applications & Technology for six days, but also arrange  for special symposia, tutorials and business programming, all highlighting the latest research applications and market-ready technologies in all areas of lasers and electro-optics. In addition, this year CLEO will gather approximately 300 companies from around the globe introducing new products and demonstrating cutting-edge innovations.

Anything else? Yes, CLEO: 2014 will also provide opportunities for attendees to have some fun, catch up with fellow attendees, and meet new contacts in the industry. This is certainly a great opportunity to network and learn how to get the most out of the conference. Moreover, this event will bring together industry executives to share their business experience with young professionals and students.

Outside of the conference, one can discover the great Silicon Valley lifestyle, wide array of recreational options and experience several wonders that surround lovely Downtown San Jose, California.

You will not want to miss out on these limitless opportunities.  Looking forward to seeing you all there.

Dec 24

By Art Agrawal, re-post from The Optical Society Blog

How can we open Open Access even further?

It is fair to say that Open Access (OA) publishing has significantly changed research and scholarship. There has been much debate OpenAccessabout OA, but the principle remains the same: allow everyone access to the published research. Its effectiveness in allowing everyone to publish is perhaps less straightforward. Yet, the trend towards OA is like the arrow of time, pointing in one direction only.

What does it hold for the future?

Simply more OA journals? New and competitive business models? The real future of OA may lie outside the debate outlined above. It may well be to enfold many more things in the embrace of Open Access!

Read the complete post at The Optical Society Blog.

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Jun 14
Space-time duality demonstrating how a temporal zone plate can be used for pulse compression. From Li et al., poster JTh2A.21.

Space-time duality demonstrating how a temporal zone plate can be used as a time-lens for pulse compression, analogous to how a spatial Fresnel zone plate can be used as a spatial lens to focus a beam. From Li et al., poster JTh2A.21.

The last day of the conference began with a donut party, including  Starbucks coffee, to provide the staples of sugar, fat, and caffeine (the real brain-food) needed to finish the last talks of breakthrough research.

On the other hand, the last poster session, Light-matter Interactions, Ultrafast and Quantum Optics, began with staples of laser-science research to include a wide range of fundamental work, instrumentation, and applications. THz optics was well represented including THz generation, spectroscopy, and detection. A number of posters showed recent breakthroughs in coherent phonon spectroscopy, single photon sources, entangled sources, quantum dot lasers and applications, and ultrafast pulse generation, compression, and characterization.

Two particularly unique posters came from two different groups in Canada, JTh2A.5, “Real-time depth monitoring of galvo-telecentric laser machining by inline coherent imaging” by Ji et al. from Queens University and Laser Depth Dynamics Corporation in Kingston, ON, and JTh2A.21, “Temporal zone plates for linear pulse compression,” by Li et al. from INRS-EMT in Montreal, QC.

Li et al. showed the temporal analog a spatial Fresnel zone plate for pulse compression. The INRS group has a history of taking spatial optic concepts and moving them to the time-domain to build clever ultrafast optical-signal processing devices. In this work, they take CW light and “focus” it to 45 ps by using the temporal zone plate as a time-lens, analogous to how one would use a spatial zone plate as spatial lens to focus a beam.  They are able to convert greater than 30% of the CW signal into the pulse, showing promise for simple, compact, fiber-integrated pulse generation for various applications.

On the other hand, Ji et al. demonstrated real-time depth monitoring during laser micromachining by integrating spectral-domain OCT with a laser mill. Typically depth determination for telecentric laser micromachining is determined by calibrating laser parameters with many trial runs on the material of interest. Despite being wasteful and time-consuming, this would not work when you need to know depth information immediately and mill correctly the very first time you ablate material, say on a human skull during surgery.

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