Tuesday, 3 May 2011 - CLEO

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Room 315 Room 316 Room 317 CLEO: Science & Innovations JOINT 11:00–12:45 CTuH • Ultrafast Measurement Techniques Randy Bartels, Colorado State Univ., USA, Presider 11:00–12:45 CTuI • CW Fiber Sources John Minelly, Coherent, Inc., USA 11:00–12:45 JTuD • Joint Symposium on Semiconductor Ultraviolet LEDs and Lasers: Semiconductor Mid- UV LEDs and Lasers Leo Schowalter, Crystal IS, USA, Presider CTuH1 • 11:00 Real-time group-delay monitoring of ultrabroadband dispersive devices by incoherent light interferometry, Yongwoo Park 1 , Antonio Malacarne 1 , Jose Azana 1 ; 1 EMT, INRS, Canada. Real-time group delay monitoring of ultrabroadband dispersive devices through incoherent interferometry is demonstrated and applied for accurate characterization of a dispersion compensating fiber over 72nm bandwidth at 15frames/s update rate. CTuI1 • 11:00 Highly efficient, high power, inband-pumped Erbium/Ytterbium-codoped fiber laser, Ee Leong Lim 1 , Shaif-ul Alam 1 , David J. Richardson 1 ; 1 Optoelectronics Research Centre, UK. A highly efficient (~80%), high power (18.45W) in-band pumped Erbium/Ytterbium-codoped fiber laser is demonstrated. Based on a fitted simulation model, the detrimental effect of pair induced quenching in high power operation is also highlighted. JTuD1 • 11:00 Invited High Power III-Nitride UV Emitters, Max Shatalov 1 , Jinwei Yang 1 , Yuri Bilenko 1 , Michael Shur 2 , Remis Gaska 1 ; 1 Sensor Electronic Technology, Inc., USA; 2 Rensselaer Polytechnic Inst., USA. Increasing power and efficiency of UV semiconductor light sources enables great expansion of system applications. We review state-of-the-art III-Nitride LEDs and report on improved device designs and fabrication for achieving high power operation. CTuH2 • 11:15 Compact spatio-temporal ultrashort pulse characterisation using a pulse shaper and a wavefront sensor, Seth L. Cousin 1 , Juan M. Bueno 2 , Nicolas Forget 3 , Dane R. Austin 1 , Jens Biegert 1,4 ; 1 ICFO-The Inst. of Photonic Sciences, Spain; 2 Laboratorio de Óptica, Universidad de Murcia, Spain; 3 Centre Scientifique d’Orsay, France; 4 ICREA-Institució Catalana de Recerca i Estudis Avançats, Spain. We demonstrate compact spatio-temporal ultrashort pulse characterisation. A programmable pulse shaper measures amplitude and phase with bFROG in-line and a Shack-Hartmann sensor measures the spatial phase of the pulse across the whole spectrum. CTuI2 • 11:15 Single-longitudinal-mode Brillouin fiber laser incorporating an unpumped erbium-doped fiber loop, Xuxing Chen 1 , Hongpu Li 1 ; 1 Dept. of the Electrical and Electronic Engineering, Shizuoka Univ., Japan. A long-cavity single-longitudinalmode Brillouin fiber laser is firstly demonstrated by utilizing an unpumped erbium-doped fiber (EDF) loop. The utilized EDF forms a self-induced ultra-narrow grating filter and thus guarantees the SLM operation. CTuH3 • 11:30 Invited Sub-30nm Spatial Resolution Imaging Using a Tabletop 13nm High Harmonic Source, Matthew D. Seaberg 1 , Daniel E. Adams 1 , William F. Schlotter 2 , Yanwei Liu 3 , Carmen Menoni 4 , Margaret Murnane 1 , Henry C. Kapteyn 1 ; 1 Physics, Univ. of Colorado at Boulder, USA; 2 SLAC National Lab, USA; 3 Center for X-Ray Optics, Lawrence Berkeley National Lab, USA; 4 Electrical and Computer Engineering, Colorado State Univ., USA. We report the highest spatial resolution (
Room 327 Room 336 Room 337 Room 338 CLEO: Science & Innovations JOINT CLEO: QELS- Fundamental Science CLEO: Science & Innovations 11:00–12:45 CTuJ • Petawatt Laser Technology Karoly Osvay, Univ. of Szeged, Hungary, Presider 11:00–12:45 JTuE • Lasers in Environmental Sensing Clifford Pollock, Cornell Univ., USA, Presider 11:00–12:45 QTuG • Invisibility and Absorbers Igor Smolyaninov, Univ. of Maryland, USA, Presider 11:00–12:45 CTuK • Optical Parametric Oscillators Andrew Schober, Lockheed Martin Coherent Technologies, USA, Presider CTuJ1 • 11:00 Invited The Vulcan 10 PW OPCPA Project, John Collier, Rutherford Appleton Lab, UK. I will describe a UK project to establish a 10-20 PW capability on the Vulcan Laser at the Rutherford Appleton Laboratory based on the OPCPA technique. Design, new technology, science and status will be covered. JTuE1 • 11:00 Lidar Measurements of Atmospheric Oxygen Using a 1.27 Micron Raman Amplifier, Jeremy T. Dobler 1 , James A. Nagel 2 , Valery Temyanko 2 , T. Scott Zaccheo 3 , Bryan Karpowicz 3 ; 1 ITT Geospatial Systems, USA; 2 TIPD Inc. / College of Optical Sciences, the Univ. of Arizona, USA; 3 Atmospheric and Environmental Research, Inc., USA. We have developed a high-power narrow linewidth Raman amplifier near 1.27 micron, integrated it into an Integrated Path Differential Absorption lidar. Groundbased measurements of atmospheric oxygen have been performed using the integrated amplifier. QTuG1 • 11:00 On the Isotropic Magnetic Response of Fabricated Core-Shell Clusters and its Ability to Cloak, Stefan Mühlig 1 , Alastair Cunningham 2 , Mohamed Farhat 1 , Carsten Rockstuhl 1 , Thomas Bürgi 2 , Falk Lederer 1 ; 1 Inst. of Solid State Theory and Condensed Matter Optics, Friedrich-Schiller- Universität Jena, Germany; 2 Faculté des Sciences, Département de Chimie Physique, Univ. of Geneva, Switzerland. We investigate a scatterer comprising a dielectric core and randomly distributed metallic nanoparticles forming a shell. We show that it acts as an isotropic magnetic meta-atom and as a cloak to conceal the core. CTuK1 • 11:00 Modulation Instability of Continuous Wave Optical Parametric Oscillators, Christopher Phillips 1 , Martin M. Fejer 1 ; 1 Stanford Univ., USA. Optical parametric oscillators exhibit a temporal modulation instability which can prevent singlelongitudinal-mode operation above a certain pumping ratio. We analyze this instability and show how it can be suppressed with an intracavity etalon. JTuE2 • 11:15 Remote backwards lasing in air, Arthur Dogariu 1 , James Michael 1 , Marlan O. Scully 1,2 , Richard Miles 1 ; 1 Princeton Univ., USA; 2 Texas A&M Univ., USA. We demonstrate high gain lasing in air from two-photon dissociation of molecular oxygen and simultaneous resonant two-photon pumping of an atomic oxygen fragment. This backwards emission provides a remote laser source for standoff detection. QTuG2 • 11:15 Three-Dimensional Newtonian Photorealistic Ray Tracing of the Conformal Grating Cloak, Jad C. Halimeh 1 , Roman Schmied 2 , Martin Wegener 3 ; 1 Physics, Ludwig Maximilians Universitaet Muenchen, Germany; 2 Physik, Universitaet Basel, Switzerland; 3 Karlsruhe Inst. of Technology, Germany. Conformal grating cloaks are relatives of the carpet cloak and can deliver excellent cloaking for reasonable parameters. This is illustrated by photorealistic Newtonian ray-tracing calculations and by cross-correlation coefficients based on these. CTuK2 • 11:15 Compact, narrow linewidth, continuous-wave, intracavity optical parametric oscillator pumped by a semiconductor disk laser, Nils Hempler 1 , Gordon Robertson 1 , Leigh Bromley 1 , Craig Hamilton 2 , Graeme P. Malcolm 1 ; 1 M Squared Lasers Ltd, UK; 2 Solus Technologies Ltd, UK. We report the narrow linewidth (5 W of signal from a picosecond optical parametric oscillator. 98 CLEO: 2011 • 1–6 May 2011
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Tuesday, 3 May 2011 - CLEO

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