Chao-Yu Chung, Yen-Yin Lin, Kuo-Yu Wu, Wan-Yu Tai, Shi-Wei Chu, Yao-Chang Lee, Yeukuang Hwu, Yin-Yu Lee
We have demonstrated coherent anti-Stokes Raman scattering (CARS) microscopy with a single-pass picosecond supercontinuum-seeded optical parametric amplifier (SCOPA). The SCOPA was pumped by a frequency-doubled picosecond passively mode-locked Nd:YVO_4 laser, and was seeded by a supercontinuum ... [Opt. Express 18, 6116-6122 (2010)]
Optics Express
Coherent anti-Stokes Raman scattering microscopy using a single-pass picosecond supercontinuum-seeded optical parametric amplifier
Thu, 2010-03-11 07:00 — GuestSingle frequency operation of a tunable injection-seeded Nd:GSAG Q-switched laser around 942nm
Thu, 2010-03-11 07:00 — GuestZhifeng Lin, Xin Wang, Frank Kallmeyer, Hans Joachim Eichler, Chunqing Gao
Single frequency operation of a diode-pumped tunable injection-seeded Nd:GSAG Q-switched laser around 942nm was demonstrated. With a three-mirror ring cavity, the single frequency laser pulse with output energy of 13.2mJ was obtained at a repetition rate of 10Hz. The linewidth of the single ... [Opt. Express 18, 6131-6136 (2010)]
Method for characterizing single photon detectors in saturation regime by cw laser
Wed, 2010-03-10 07:00 — GuestJungmi Oh, Cristian Antonelli, Moshe Tur, Misha Brodsky
We derive an analytical expression for the count probability of a single photon detector for a wide range of input optical power that includes afterpulsing effects. We confirm the validity of the expression by fitting it to the data obtained from a saturated commercial Single Photon Detector by ... [Opt. Express 18, 5906-5911 (2010)]
Multi-watts narrow-linewidth all fiber Yb-doped laser operating at 1179 nm
Wed, 2010-03-10 07:00 — GuestMridu P. Kalita, Shaif-ul Alam, Christophe Codemard, Seongwoo Yoo, Alexander J. Boyland, Morten Ibsen, Jayanta K. Sahu
An all-fiber, narrow-linewidth, high power Yb-doped silica fiber laser at 1179 nm has been demonstrated. More than 12 W output power has been obtained, corresponding to a slope efficiency of 43% with respect to launched pump power, by core-pumping at 1090 nm. In order to increase the pump ... [Opt. Express 18, 5920-5925 (2010)]
Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on double-modulation scheme
Wed, 2010-03-10 07:00 — GuestYosuke Mizuno, Zuyuan He, Kazuo Hotate
We have demonstrated a double-modulation scheme to enlarge the measurement range of Brillouin optical correlation-domain reflectometry for fiber-optic distributed strain sensing. In this scheme, the frequency of the laser output is simultaneously modulated with two different frequencies. In the ... [Opt. Express 18, 5926-5933 (2010)]
Carbon ion implanted Nd:MgO:LiNbO_3 optical channel waveguides: an intermediate step between light and heavy ion implanted waveguides
Wed, 2010-03-10 07:00 — GuestNing-Ning Dong, Feng Chen, Daniel Jaque
We report on the micron-luminescent properties of carbon ion implanted optical channel waveguides in the Nd:MgO:LiNbO_3 laser crystals. The confocal fluorescence images of the waveguide’s cross section are presented based on the analysis of the spatial variation of the Nd^3+ fluorescence ... [Opt. Express 18, 5951-5956 (2010)]
An intracavity, frequency-doubled BaWO_4 Raman laser generating multi-watt continuous-wave, yellow emission
Wed, 2010-03-10 07:00 — GuestAndrew J. Lee, Helen M. Pask, James A. Piper, Huaijin Zhang, Jiyang Wang
We report the generation of multi-watt continuous-wave (CW) yellow laser emission from an intracavity diode-pumped Nd:GdVO_4 /BaWO_4 Raman laser utilising a high-Q resonator (for fundamental and first-Stokes wavelengths) and intracavity frequency-doubling in LBO. CW output power of 2.9 W is ... [Opt. Express 18, 5984-5992 (2010)]
Intermediate high index layer for laser mode tuning in organic semiconductor lasers
Wed, 2010-03-10 07:00 — GuestM. Stroisch, T. Woggon, C. Teiwes-Morin, S. Klinkhammer, K. Forberich, A. Gombert, M. Gerken, U. Lemmer
We modified the optical properties of organic semiconductor distributed feedback lasers by introducing a high refractive index layer consisting of tantalum pentoxide between the substrate and the active material layer. A thin film of tris-(8-hydroxyquinoline) aluminium doped with the laser dye ... [Opt. Express 18, 5890-5895 (2010)]
Passive mode-locking of a diode-pumped Nd:YVO_4 laser by intracavity SHG in PPKTP
Mon, 2010-03-08 07:00 — GuestHristo Iliev, Danail Chuchumishev, Ivan Buchvarov, Valentin Petrov
Experimental results on passive mode-locking of a Nd:YVO_4 laser using intracavity frequency doubling in periodically poled KTP (PPKTP) crystal are reported. Both, negative cascaded χ^(2) lensing and frequency doubling nonlinear mirror (FDNLM) are exploited for the laser mode-locking. The ... [Opt. Express 18, 5754-5762 (2010)]
Femtosecond protein nanocrystallography—data analysis methods
Fri, 2010-03-05 07:00 — GuestRichard A. Kirian, Xiaoyu Wang, Uwe Weierstall, Kevin E. Schmidt, John C. H. Spence, Mark Hunter, Petra Fromme, Thomas White, Henry N. Chapman, James Holton
X-ray diffraction patterns may be obtained from individual submicron protein nanocrystals using a femtosecond pulse from a free-electron X-ray laser. Many “single-shot” patterns are read out every second from a stream of nanocrystals lying in random orientations. The short pulse ... [Opt. Express 18, 5713-5723 (2010)]
