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7 th International Conference on Optical, Optoelectronic and Photonic Materials and Applications Co-chaired by Prof. Raman Kashyap From Polytechnique Montreal Prof. Younès Messadeq From Laval University

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7 th International Conference on Optical, Optoelectronic and Photonic Materials and Applications Co-chaired by Prof. Raman Kashyap From Polytechnique Montreal Prof. Younès Messadeq From Laval University Prof. Carlos Silva From University of Montreal Polytechnique Montréal Contents Schedule Our sponsors 4 Welcome Remarks 5 Conference Events 6 What do to in Montreal 7 Detailed program Monday 8 Detailed program Tuesday Detailed program Wednesday 03 Detailed program Thursday 78 Detailed program Friday 04 Detailed program Workshop 4 Session Chairs 4 Organizing Committee 43 List of Attendees 44 Useful Maps 49 Schedule AM 09:00 09:30 0:00 0:30 :00 :30 :00 :30 3:00 3:30 Monday June 3 M-00 M-00 M-0 Registration Opening Remarks C-63 Tuesday June 4 M-00 M-00 M-0 Tu-A: Biophotonics and Sensing I Chair: Ramaswami Sammynaiken Tu-B: Nonlinear Effects Chair: Cyril Koughia Tu-C: Materials for Optoelectronics Chair: Mojtaba Kahrizi Coffee Break (M-03) Tu-A: Biophotonics and Sensing II Chair: Tigran Glastian Tu-B: Photonic Materials Chair: Richard Curry Tu-C: Semiconductors Chair: Robert Johanson LUNCH (Provided) Atrium (3rd floor Lassonde building) Wednesday June 5 M-00 M-00 M-0 We-A: Optoelectronic Materials Chair: Michael Bradley We-B: Fibers Chair: Real Vallee We-C: Chalcogenide Glasses Chair: Younes Messaddeq Coffee Break (M-03) We-A: Photoinduced Effects and Selected Topics Chair: Peter Mascher We-B: Fibers and Mid- Infrared Chair: Luis Fernandes We-C: Chalcogenide Glasses Chair: Dan Hewak LUNCH (Provided) Atrium (3rd floor Lassonde building) Thursday June 6 M-00 M-00 M-0 Th-A: Materials for Optoelectronics Chair: Stephen O'Leary Th-B: Selected Topics in Photonics Chair: Younes Messaddeq Th-C: Workshop on Advances on Materials Chair: Safa Kasap Coffee Break (M-03) Th-A: Optical Properties Chair: Jai Singh Th-B: Quantum Wells, Wires and Dots I Chair: Jan Dubowski Th-C: Workshop on Advances on Materials Chair: Alla Reznik LUNCH (Provided) Atrium (3rd floor Lassonde building) Friday June 7 M-00 M-00 M-0 Fr-A: Photovoltaics Chair: Carlos Silva Fr-C: Workshop on Advances on Materials Chair: Safa Kasap Coffee Break (M-03) Fr-A: Selected Topics in Optoeletronics Chair: Raman Kashyap Fr-C: Workshop on Advances on Materials Chair: Alla Reznik LUNCH (Provided) Atrium (3rd floor Lassonde building) Monday June 3 Tuesday June 4 Wednesday June 5 Thursday June 6 Friday June 7 4:00 Schedule 4:30 5:00 5:30 6:00 6:30 7:00 7:30 8:00 :00 PM Plenary Frank Hegmann C-63 Coffee Break (M-03) Mo-A: Terahertz and Femtosecond Chair: Frank Hegmann Mo-C: Integrated Optics and Photonic Devices and Systems Chair: Raman Kashyap Welcome Reception Le cercle - HEC (8:00-:00) M-00 M-00 M-0 Plenary Setsuhisa Tanabe C-63 Coffee Break (M-03) Tu-A3: Synthesis and Fabrication Chair: Lluis Marsal Tu-A3: Fibers, Sensors and Amplifiers Chair: Jayshri Sabarinathan Tu-C3: Optical Properties and Luminescence Chair: Tony Kenyon Poster Session Roland Gallery B (8:00-0:00) M-00 M-00 M-0 Plenary Paul Stavrinou C-63 Coffee Break (M-03) We-A3: Glasses and Glass Ceramics for Optoelectronics Chair: Ganapathy Senthil Murugan We-A3: Organics and Photovoltaics Chair: Fiorenzo Vetrone We-C3: Workshop on Advances on Materials Chair: Safa Kasap Poster Session Roland Gallery B (8:00-0:00) M-00 M-00 M-0 Plenary Ursula Keller C-63 Th-C3: Workshop on Advances on Materials Chair: Andy Edgar Coffee Break (M-03) Th-A3 Luminescence Chair: Jai Singh Th-A3: Optoelectronic Materials including Quantum Structures Chair: Harry Ruda Th-C4: Workshop on Advances on Materials Chair: Dirk Poelman Banquet Auberge St- Gabriel (8:00 - Late) M-00 M-00 M-0 Legend M-00 A: M-00 B: M-00 C: M-0 M-00 M-0 3 Our sponsors 4 Welcome Remarks As the Conference Chairs, we are extremely pleased to welcome you to the 7 th ICOOPMA (International Conference on Optical, Optoelectronic and Photonic Materials and Applications), being held for the first time at Polytechnique Montreal, -7 June 06. Begun in 006 by the visionary, Prof. Safa Kasap, held and hosted for the first time in Darwin by Prof. Jai Singh in 006, this Conference Series has seen a tremendous growth in attendance. The diversity of topics based on optical materials has attracted a wide range of interest from experts in many fields from fundamental study of defects in glass, transport mechanisms, spectroscopy, semiconductors, photonics applications and many more. It is this very mix that has made it such a rich opportunity for the delegates to enjoy the latest developments from world authorities in one forum. We are happy to see 3 countries represented at this meeting with over 30 registered at the time of the printing of the proceedings. The program includes 4 outstanding Plenaries and 8 Invited talks covering all the major themes of the conference, with around 50 contributed papers. We expect that you will get the best out of the time spent at the meeting as well as in Montreal, a superb city, especially in the summer with plenty to offer the visitor. Dove-tailing the 06 Grand Prix, the city will become increasingly accessible, offering a diversity of outstanding restaurants, wine bars, art galleries, museums and parks for you to enjoy. Our conference program includes a Welcome Reception on Monday evening, lunches, two poster sessions with refreshments and food, and a Conference Banquet in the Old Port of Montreal. We are confident that you will have a great time in Montreal! This has only been possible by the help of the graduate students in the Fabulas Laboratory, especially the tireless efforts of Victor Lambin-Iezzi, our indefatigable Conference Secretary, Web-Designer and the Technical Manager of the Conference, and our Foodie and Proceedings Manager, Sebastien Loranger with assistance from Jean-Sebastien Boisvert. Without their help, this Conference would never have taken place. Acknowledged, is the assistance of Ameneh Bostani, Tahereh Tameh, Marie-Hélène Bussières-Hersir, Audrey Laurence, Philippe Décoste and Dr. Amirhosein Tahranchi, who will also be there and happy to assist you during the conference. We are extremely grateful to Prof. Safa Kasap for his lightening response to manufacturing the program timetable as well as his bottomless organising abilities! His attention to minute detail was fundamental to the success, which we are sure you will appreciate immensely. The efforts of Michelle Bernier of COPL for communications and Diane Déziel for her expert advice and guidance are also recognised. We should not forget the tremendous efforts of the technicians at Poly-Grames, Jules Gauthier, Steve Dubé for their dexterity in manufacturing the gifts for invited speakers, and Jean-Sébastien Décarie for the communications and internet support, right from the very beginning of the conference organization. Finally, we would like to give special thank to Michel Gemieux and Catherine Caffiaux for their help on logistic and finances. We wish to thank Polytechnique Montreal and its Administration, for making the facilities available to host such a large event in the heart of the City. Finally, we wish to acknowledge and thank the support of many Organisations for their partnership and sponsorship of the Conference. These include our Gold Sponsors: Light Conversion, CST of America, COPL and Oz Optics, Silver Sponsors: Thorlabs, MPB Communications and Pritel, Bronze Sponsor: Photonova, and finally our Partners: Wiley, McGraw Hill, Springer and Pearson for contribution towards prizes. Raman Kashyap, PhD, FRSC Co-chair ICOOPMA 06 Canada Research Chair on Future Photonics Systems Younès Messaddeq, PhD Co-chair ICOOPMA 06 Canada Excellence Research Chair in Photonic Innovations Carlos Silva, PhD Co-chair ICOOPMA 06 University of Montreal Research Chair 5 Conference events Conference Events Welcome Reception Monday 3 /8h00 -h00 Location: HEC Le Cercle (3000, chemin de la Côte Sainte-Catherine, Montréal, H3T A7 Canada) Cocktail starts at 8h00 Tuesday 4 /8h00-0h00 Poster Session : Po-Tu Location : Gallerie Roland Starts at 8:00 Drinks and starters will be served Student Activity afterwards from 0:00 until late Poster Session : Po-We Wednesday 5 /8h00-0h00 Location : Gallerie Roland Poster session starts at 8h00 Drinks and starters will be served Thursday 6 /8h30 -Late ICOOPMA Banquet Location : Auberge St-Gabriel (46 Saint Gabriel street, Montréal, HY Z9) Cocktail starts at 8h30 6 Montréal Sightseeing Activity Old Montreal and Old port Notre-Dame Basilica Pointe-à-Callière, Museum of Archaeology and History Underground city Mount Royal Park Space for Life (Biodome, Planetarium, Olympic Stadium, Botanic Gardens) Saint Joseph s Oratory of Mount Royal Subway location Champ-de-Mars Place-d Armes Place-d Armes McGill Mont-Royal Pie-IX Côte-des-Neiges Festivals and Special Activities June 0- June 8- June 0-8 Formula GP Beer Festival Francofolies Eat and Drink near Polytechnique $ off on pitchers On presentation of your badge, you get: Special prices on selected beers Selected $ with a meal 7 Detailed Program Monday June 3 th Plenary Bell Amphitheater 4h00 Nanoscale Imaging with Ultrafast Terahertz Scanning Tunneling Microscopy Monday V. Jelic, T. L. Cocker, P. H. Nguyen, K. Iwaszczuk, C. Rathje 3, G. J. Hornig, H. M. Sharum, J. R. Hoffman, R. Miller, S. J. Molesky, M. Gupta 4, J. A. J. Burgess, G. B. De los Reyes, L. V. Titova ǂ, C. Ropers 3, Y. Y. Tsui 4, Mark R. Freeman, and F. A. Hegmann Department of Physics, University of Alberta, Edmonton, Alberta T6G E, Canada DTU Fotonik Department of Photonics Engineering, Technical University of Denmark, DK-800 Kongens Lyngby, Denmark 3 4th Physical Institute, University of Göttingen, Göttingen, Germany 4 Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, T6G E Canada Current address: Department of Physics, University of Regensburg, Regensburg, Germany Current address: Max Planck Institute for the Structure and Dynamics of Matter, 76 Hamburg, Germany ǂ Current address: Department of Physics, Worcester Polytechnic Institute, Worcester, MA, 0609 USA Corresponding author The ability to directly image ultrafast phenomena with nanometer spatial resolution is essential to our understanding of local excitation dynamics in nanomaterials and devices. We have developed a new approach to ultrafast scanning tunneling microscopy (STM) that couples terahertz (THz) pulses to the scanning tip of a STM []. We have used THz-STM under ambient lab conditions to image ultrafast charging dynamics of a single InAs nanodot on GaAs with 0.5 ps time resolution and nm spatial resolution. Recently, we have developed THz-STM for operation in ultrahigh vacuum and have achieved terahertz-pulse-induced tunneling with 0.3 nm spatial resolution, enabling studies of ultrafast tunneling dynamics in materials on the atomic scale []. The scanning tunneling microscope can image surfaces with atomic resolution, but the time resolution is typically limited to a few tens of microseconds by the bandwidth of the amplifier electronics. To achieve picosecond or subpicosecond time resolution, various ultrafast STM techniques that integrate femtosecond lasers have been developed [3,4]. Time-resolved terahertz (THz) pulse spectroscopy is now a well-established technique for probing ultrafast carrier dynamics in nanomaterials [5-7], but the spatial resolution is typically set by the diffraction limit spot size of the THz pulse (~ mm). Recently, however, scattering scanning near-field optical microscopy (s-snom) using infrared and multi-thz pulses has enabled imaging of ultrafast carrier dynamics in graphene [8], ultrafast photoconductivity dynamics in single semiconductor nanowires with 0 nm spatial resolution [9], and spatiallyresolved dynamics of the insulator-metal transition in vanadium dioxide nanobeams [0]. Fig.. Schematic of THz-STM showing THz pulse coupling to the scanning tip of an STM. As shown schematically in Fig., a new ultrafast STM technique that couples THz pulses to the scanning probe tip of an STM has been demonstrated (THz-STM), providing simultaneous 0.5 ps time resolution and nm spatial resolution under ambient laboratory conditions []. The THz pulse acts like a fast voltage transient across the tunnel junction that results in a rectified tunnel current signal. Optical pump THz-STM probe studies can also be performed, as demonstrated by imaging ultrafast carrier capture into a single InAs nanodot photoexcited with 800 nm pump pulses [] (Fig. ). 8 Monday Plenary Monday Detailed Program Monday June 3 th Fig.. Probing ultrafast carrier capture dynamics in a single InAs nanodot on GaAs. (a) THz pulse arrives before an 800 nm, 50 fs pump pulse (negative pump-probe delay time). (b) STM topography scan of the InAs nanodot taken simultaneously with the THz-STM signal (c) at a delay time of -500 fs. The THz-pulse-induced signal is almost zero over both the InAs nanodot and GaAs substrate. (d) The pump pulse excites photocarriers in the GaAs substrate. Electrons are captured quickly, followed by the capture of holes a few picoseconds later. The THz pulse arrives afterwards (positive pump-probe delay time). The InAs nanodot (e) at early times (+500 fs) after photoexcitation gives a THz-STM signal (f) over the nanodot. The scale for the THz- STM signal in (c) and (f) is given as the number of rectified tunnel electrons induced by each THz pulse. [] Ultrafast THz-STM can achieve sub-nanometer spatial resolution and sub-picosecond time resolution on surfaces, enabling ultrafast processes to be imaged on the nanoscale with atomic precision. Acknowledgments We acknowledge support from NSERC, CFI, ASRIP, icore, AITF icinano, and the AITF Strategic Chair Program [] T. L. Cocker, V. Jelic, M. Gupta, S. J. Molesky, J. A. J. Burgess, G. De Los Reyes, L. V. Titova, Y. Y. Tsui, M. R. Freeman, and F. A. Hegmann, An ultrafast terahertz scanning tunnelling microscope, Nature Photon. 7, (03). [] V. Jelic, K. Iwaszczuk, P. H. Nguyen, C. Rathje, G. J. Hornig, H. M. Sharum, J. R. Hoffman, M. R. Freeman and F. A. Hegmann, Atomic resolution terahertz scanning tunnelling microscopy of a silicon surface, (Submitted 06) [3] N. N. Khusnatdinov, T. J. Nagle, and G. Nunes, Jr, Ultrafast scanning tunneling microscopy with nm resolution, Appl. Phys. Lett. 69, (996). [4] S. Yoshida, Y. Aizawa, Z. Wang, R. Oshima, Y. Mera, E. Matsuyama, H.Oigawa, O. Takeuchi, H. Shigekawa, Probing ultrafast spin dynamics with optical pump-probe scanning tunneling microscopy, Nature Nanotech. 9, 588 (04). [5] P. U. Jepsen, D. G. Cooke, and M. Koch, Terahertz spectroscopy and imaging Modern techniques and applications, Laser Photon. Rev. 5, 4-66 (0). [6] R. Ulbricht, E. Hendry, J. Shan, T. F. Heinz, and M. Bonn, Rev. Mod. Phys. 83, 543 (0). [7] T. L. Cocker, L. V. Titova, S. Formaux, G. Holloway, H.-C. Bandulet, D. Brassard, J.-C. Kieffer, M. A. El Khakani, and F. A. Hegmann, Phys. Rev. B 85, 550 (0) [8] M. Wagner, Z. Fei, A. S. McCleod, A. S. Rodin, W. Bao, E. G. Iwinski, Z. Zhao, M. Goldflam, M. Liu, G. Dominguez, M. Thiemens, M. M. Fogler, A. H. Castro Neto, C. Ning Lau, S. Amarie, F. Keilman, and D. N. Basov, Ultrafast and nanoscale plasmonic phenomena in exfoliated grapheme revealed by infrared pump-probe nanoscopy, Nano Lett. 4, 894 (04). [9] M. Eisele, T. L. Cocker, M. A. Huber, M. Plankl, L. Viti, D. Ercolani, L. Sorba, M. S. Vitiello, and R. Huber, Ultrafast multi-terahertz nano-spectroscopy with sub-cycle temporal resolution , Nature Photon. 8, 84 (04). [0] M. A. Huber, M. Plankl, M. Eisele, R. E. Marvel, F. Sandner, T. Korn, C. Schüller, R. F. Haglund, R. Huber, and T. L. Cocker, Nano Lett. 6, 4 (06). Monday Plenary 9 Detailed Program Monday June 3 th Mo-A I Invited M-00 5h30 Spin-orbit coupling probed in D materials using terahertz time-domain spectroscopy Monday J. Lloyd-Hughes Department of Physics, University of Warwick, Coventry, UK Corresponding author Terahertz time-domain spectroscopy is a powerful method to access the low-energy dynamics of charges in semiconductor nanostructures. In this talk I will discuss our recent work examining the THz cyclotron resonance of quantum-confined materials of potential interest in spintronics. I will describe how we can use THz radiation to assess the strength of the spin-orbit and spin-lattice interactions. Oxide heterostructures can display exotic ground states, such as fractional quantum Hall states and weak ferromagnetism. A single cyclotron resonance was found for D electrons in Zn(-x)Mg(x)O/ZnO heterostructures (with x=0.). Low-temperature complex magnetoconductivity spectra allowed important material parameters to be determined []. The polaronic mass measured was observed to reduce at lower applied magnetic fields. I will discuss this finding in relation to polaron mass renormalization effects that can be created by the electron-lo phonon and electron-acoustic phonon interactions. In contrast, for high-mobility D heavy-hole gases in Ge quantum wells with structural inversion asymmetry we find multiple cyclotron resonances []. This can be ascribed to the spin-splitting driven by the Rashba spin-orbit interaction (at low magnetic fields) and to the Zeeman effect in a nonparabolic band (at high magnetic fields). The cubic spin-orbit interaction strength was determined in a non-contact fashion from the cyclotron resonances, and agreed with results from device magnetotransport. Importantly, an enhanced spin-orbit interaction was found to be concomitant with a high mobility, suggesting the promise of this system for CMOS-compatible spintronics [] J. Lloyd-Hughes, M. Failla, J. Ye, S.P.P. Jones, K.L. Teo, and C. Jagadish, Appl. Phys. Lett. 06:003 (May 05) [] M. Failla, M. Myronov, C. Morrison, D. R. Leadley, and J. Lloyd-Hughes, Physical Review B, 9: (July 05) 0 Monday Mo-A: Terahertz and Femtosecond Monday Detailed Program Monday June 3 th Mo-A I Invited M-00 6h00 Time-Domain Quantum Optics: Detection of Bare Vacuum and Beyond Denis Seletskiy, Claudius Riek, and Alfred Leitenstorfer Department of Physics and Center for Applied Photonics, University of Konstanz, 78457, Konstanz, Germany Corresponding author The ability to electro-optically sample time evolution of electromagnetic field has proven to be invaluable for probing ultrafast dynamics associated with excitations of low-energy degrees of freedom in condensed matter. While some information on the quantum nature of many-body interactions can be obtained from classical probes, it is the nonclassical detection schemes that can provide direct access to nontrivial correlations of fundamental degrees of freedom in condensed matter []. Thus, to develop a unified subcycle approach to quantum physics, the building blocks of field-resolved quantum sampling need to be addressed head on. In this work we discuss first direct detection of vacuum fluctuations of an ultrabroadband electric field in the multi-thz frequency range []. At the sensitivity limit, electro-optic detection can sample fluctuations induced by the quantum nature of the fields. If the classical to-be-measured photon state is blocked, vacuum fluctuations which are incident on the detector crystal and co-propagate with a moving frame of the probe pulse can be measured [,3]. Quite generally, the rms amplitude of the probed vacuum field E vac is described by [3] The product Δx Δy Δz Δt corresponds to a four-dimensional volume V pr occupied by a probe pulse with a transverse focal area Δx Δy and longitudinal extent Δz Δt. In a realistic detection scheme, this nontrivial noise contribution is added in quadrature to the shot noise of the probe. The quantum contribution can therefore be distinguished by variation of V pr. By changing either the probe pulse duration (from 5.8 fs to 00 fs) or the focal spot size (from 4.5 µm to 00 µm), we are able to attribute approximately 4% of the total noise to the quantum vacuum component. With an amplitude of E vac = 0 V/cm for the minimum V pr, it
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