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Conference on Lasers and Electro-Optics

作者： Jang Hyuk Lee Ally Yoon Sang-Mo Shin Myoung-Kyu Oh Do-Kyeong Ko Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology Graduate program of Medical System Engineering Gwangju Institute of Science and Technology Advanced Photonics Research Institute Gwangju Institute of Science and Technology

A CARS microspectroscopy system was developed and applied to live breast cancer cells. CARS image and spectrum at C-H vibration stretching in lipid droplets differentiate cancer cell from normal cell.

ISBN: (纸本)9781467318396

关键词： Microscopy Spectroscopy Coherent anti-Stokes Raman scattering Medical and biological imaging

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Summer school for acoustics graduate students

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Proceedings of Meetings on Acoustics 2013年第1期19卷

作者： Steven L. Garrett Anthony A. Atchley Logan E. Hargrove Thomas J. Matula Joseph R. Gladden Henry E. Bass Grad. Prog. in Acoustics Penn State University PO Box 30 State College PA 16801-0030 Graduate Program in Acoustics The Pennsylvania State University 101 Hammond Bldg. State College PA 16803 Retired Reston VA Applied Physics Laboratory University of Washington 1013 NE 40th St. Seattle WA 98105 National Center for Physical Acoustics University of Mississippi 1062 N C P A University MS 38677 National Center for Physical Acoustics University of Mississippi University MS 38677

In addition to subject mastery and the focused effort required to complete a thesis project, graduate students also need to develop a broad understanding of their field and cultivate a familiarity with the larger community of researchers and practitioners. The "summer school" format has been shown to enhance both subject-matter breadth and build community awareness in physical acoustics. Physical Acoustics Summer School (PASS) has been held in late-May, in even-numbered years, since 1992. The format for each day is usually two three-hour lectures followed by evening discussion groups to answer questions and explore extensions of the day's lecture topics. One lecture session is typically dedicated to acoustics demonstrations. Attendance for the full week is required of all participants who also dine together three times each day. Venues are chosen to provide isolation that minimizes distraction and maximizes interactions among all participants. Typical enrollment has been ten distinguished lecturers (including many Silver Medal winners in Physical Acoustics), ten discussion leaders, and thirty graduate students. This format has been successfully extended to one other ASA Technical Committee: the marine bioacoustics community has held their summer school twice (SeaBASS). PASS has now been functioning long enough that former students have become lecturers.

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Development of a novel all-optical fiber isolator using a CdSe quantum dots doped optical fiber

Development of a novel all-optical fiber isolator using a Cd...

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Optical Fiber Communication Conference and Exposition

作者： Seongmin Ju Youngwoong Kim Pramod R. Watekar Seongmook Jeong Won-Taek Han Department of Information and Communications Gwangju Institute of Science and Technology (GIST) Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology (GIST) School of Electronics Engineering VIT University

A novel all-optical fiber isolator with 14 dB isolation at 660 nm was developed by using a CdSe quantum dots doped optical fiber of 183 cm length at magnetic field of 0.1 T.

ISBN: (纸本)9781467302623

A novel all-optical fiber isolator with 14 dB isolation at 660 nm was developed by using a CdSe quantum dots doped optical fiber of 183 cm length at magnetic field of 0.1 T.

关键词： Fiber optic communications High power fiber lasers Magnetic fields Optical fibers Quantum dots Single mode fibers Fiber optics (060.2310) Faraday effect (230.2240) Isolators (230.3240)

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Angle and polarization independent plasmonic infrared band-stop filter with metallic disk on SiO2

Angle and polarization independent plasmonic infrared band-s...

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16th Opto-Electronics and Communications Conference, OECC 2011

作者： Abbas, Mohammed Nadhim Cheng, Cheng-Wen Chang, Yia-Chung Shih, Min-Hsiung Research Center for Applied Sciences Academia Sinica Taipei 11529 Taiwan Institute of Physics and Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 115 Taiwan Department of Engineering and System Science NTHU Hsinchu 300 Taiwan

ISBN: (纸本)9781612842882

We demonstrated Ag/SiO2 metallic disk structure can be applied as an efficient narrow stop band filter in the IR region. The absorption spectra of such structure are investigated both theoretically and experimentally. The metallic disk exhibits only one significant localized surface plasmon polariton mode for both TM and TE polarizations simultaneously which can give an ultrahigh immunity to incident angles and polarization direction. © 2011 National Sun Yat-Sen Univ.

关键词： Silica

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Dual-color nonlinear optical microscope imaging and its applications

Dual-color nonlinear optical microscope imaging and its appl...

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2011 International Quantum Electronics Conference, IQEC 2011 and Conference on Lasers and Electro-Optics, CLEO Pacific Rim 2011

作者： Lee, Jang Hyuk Choi, Dae Sik Song, Dong Hoon Cho, Eun Hee Shin, Sang-Mo Oh, Myoung-Kyu Ko, Do-Kyeong Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Graduate Program of Medical System Engineering Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Advanced Photonics Research Institute Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of

ISBN: (纸本)9780977565771

A photonic crystal fiber (PCF) based dual-color nonlinear microscope that combines coherent anti-Stokes Raman scattering (CARS) microscopy and two-photon excitation fluorescence (TPEF) microscopy was developed and applied to imaging of polystyrene beads, lily pollens, and live breast cancer cells using a femtosecond laser. © 2011 IEEE.

关键词： Photonic crystal fibers

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Laser-driven plasma beat-wave propagation in a density-modulated plasma

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Physical Review E 2011年第5期84卷 056403-056403页

作者： Devki Nandan Gupta In Hyuk Nam Hyyong Suk Department of Physics and Astrophysics University of Delhi Delhi 110 007 India Advanced Photonics Research Institute and Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology Gwangju 500 712 Korea

A laser-driven plasma beat wave, propagating through a plasma with a periodic density modulation, can generate two sideband plasma waves. One sideband moves with a smaller phase velocity than the pump plasma wave and the other propagates with a larger phase velocity. The plasma beat wave with a smaller phase velocity can accelerate modest-energy electrons to gain substantial energy and the electrons are further accelerated by the main plasma wave. The large phase velocity plasma wave can accelerate these electrons to higher energies. As a result, the electrons can attain high energies during the acceleration by the plasma waves in the presence of a periodic density modulation. The analytical results are compared with particle-in-cell simulations and are found to be in reasonable agreement.

关键词： PLASMA waves ELECTRONS DENSITY PARTICLES (Nuclear physics) ELECTRON accelerators

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Twin-core photonic crystal fiber for in-line torsion sensor

Twin-core photonic crystal fiber for in-line torsion sensor

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OptoElectronics and Communications Conference, OECC

作者： Bongkyun Kim Long Cui Youngjoo Chung School of Information and Communications Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology Gwangju South Korea

We present the in-line torsion sensing scheme using the twin-core photonic crystal fiber (TC-PCF). An in-line Mach-Zehnder interferometer can be effectively configured by splicing a section of TC-PCF between two SMFs. The torsion sensitivity was measured by monitoring the twist-induced spectral fringe shift. The channeled spectrum was found to shift bi-directionally as the twist rate was increased. The peak wavelength shifts toward longer wavelength sides then the shift rate is gradually reduced. Finally the peak wavelength shifts toward shorter wavelength region with the increased twist rates.

关键词： Optical interferometry Optical fiber sensors Optical device fabrication Optical fiber polarization

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Structure and dynamics of highly charged heavy ions studied with the electron beam ion trap in Tokyo

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Hyperfine Interactions 2011年第1期199卷 123-130页

作者： Nakamura, Nobuyuki Hu, Zhimin Watanabe, Hirofumi Li, Yueming Kato, Daiji Currell, Fred J. Tong, Xiao-Min Watanabe, Tsutomu Ohtani, Shunsuke Institute for Laser Science The University of Electro-Communications 1-5-1 Chofugaoka Chofu Tokyo 182-8585 Japan Chubu University 1200 Matsumoto-cho Kasugai-shi Aichi 487-8501 Japan Institute of Applied Physics and Computational Mathematics P.O.Box 8009 Beijing 100088 China National Institute for Fusion Science 322-6 Oroshi-cho Toki Gifu 509-5292 Japan Centre for Plasma Physics School of Mathematics and Physics Queen's University Belfast Belfast BT7 1NN United Kingdom Doctoral Program in Materials Science Graduate School of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8573 Japan

In this paper, we present the structure and the dynamics of highly charged heavy ions studied through dielectronic recombination (DR) observations performed with the Tokyo electron beam ion trap. By measuring the energy dependence of the ion abundance ratio in the trap at equilibrium, we have observed DR processes for open shell systems very clearly. Remarkable relativistic effects due to the generalized Breit interaction have been clearly shown in DR for highly charged heavy ions. We also present the first result for the coincidence measurement of two photons emitted from a single DR event. © 2011 Springer Science+Business Media B.V.

关键词： Heavy ions

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Broadband antireflective glasses with subwavelength structures using randomly distributed Ag nanoparticles

Broadband antireflective glasses with subwavelength structur...

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作者： Park, Gyeong Cheol Song, Young Min Ha, Jong-Hoon Lee, Yong Tak Department of Information and Communications Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Department OfNanobio Materials and Electronics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of

We demonstrate broadband antireflective glasses with subwavelength structures (SWSs) using randomly distributed Ag nanoparticles. Ag nanoparticles formed by a thermal dewetting process were used as an etch mask for dry etching to fabricate antireflective SWSs on the glass surface. The size and shape of Ag nanoparticles are changed by the different thickness of the Ag thin film. The morphology of SWSs fabricated by using the Ag thin films is well consistent with that of the Ag nanoparticles. The single-side SWS integrated glass exhibits improved transmittance of ∼96% at 750 nm due to the graded refractive index profiles, while the transmittance is only ∼92.5% for the flat surface. To reduce Fresnel reflection at the other side of the glass substrate, the SWSs with optimized Ag film thickness and dry etching conditions are formed on both sides of the glass. The dual-side SWS integrated glass show an average transmittance of ∼97.5% in a wavelength range of 350-750 nm. Transmission band shrinkage effects of the SWS integrated glass are also observed with increased average size of the Ag nanoparticles. Copyright © 2011 American Scientific Publishers All rights reserved.

关键词： Metal nanoparticles

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Fabrication of uniform QPM device using negative multiple pulse poling method

Fabrication of uniform QPM device using negative multiple pu...

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2011 International Quantum Electronics Conference, IQEC 2011 and Conference on Lasers and Electro-Optics, CLEO Pacific Rim 2011

作者： Choi, Ju Won Kang, Heejong Ko, Do-Kyeong Ro, Jung Hoon Yu, Nan Ei Graduate Program of Photonics and Applied Physics Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Advanced Photonics Research Institute Gwangju Institute of Science and Technology Gwangju 500-712 Korea Republic of Department of Biomedical Engineering School of Medicine Pusan National University Busan 602-739 Korea Republic of

We introduced a novel negative multiple pulse poling (NMP) method for uniform device fabrication of quasi-phase matching using an in-situ visualization system. Diffraction pattern analysis showed the duty ratio of 0.4... 详细信息

ISBN: (纸本)9780977565771

关键词： Fabrication

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