Results 11 to 20 of about 1,759,075 (150)

Active Q-switching in semiconductor ring lasers

, 2008
We report on the integration of semiconductor ring lasers with tunable directional couplers to modulate the Q-factor of the ring cavity.
Furst, S., Sorel, M., Mezosi, G.
core   +9 more sources

High-Q bismuth silicate nonlinear glass microsphere resonators [PDF]

, 2012
The fabrication and characterization of a bismuth-silicate glass microsphere resonator has been demonstrated. At wavelengths near 1550 nm, high-modes can be efficiently excited in a 179 µm diameter bismuth-silicate glass microsphere via evanescent ...
Ding, M., Murugan, Ganapathy, Wang, P., Farrell, G., Lee, Timothy, Semenova, Y., Semenova, Yuliya, Lee, T., Brambilla, G., Wu, Qiang, Koizumi, Fumihito, Murugan, Ganapathy Senthil, Brambilla, Gilberto, Ding, Ming, Wu, Q., Koizumi, F., Farrell, Gerald, Murugan, G.S., Wang, Pengfei   +18 more
core   +1 more source

Approximate solutions of stochastic differential delay equations with Markovian switching [PDF]

, 2010
Our main aim is to develop the existence theory for the solutions to stochastic differential delay equations with Markovian switching (SDDEwMSs) and to establish the convergence theory for the Euler-Maruyama approximate solutions under the local ...
Li, Xiaoyue, Shen, Y., Mao, X., Shen, Yi, Mao, Xuerong   +4 more
core   +4 more sources

Stochastic population dynamics under regime switching II [PDF]

, 2007
This is a continuation of our paper [Q. Luo, X. Mao, Stochastic population dynamics under regime switching, J. Math. Anal. Appl. 334 (2007) 69-84] on stochastic population dynamics under regime switching.
, Edinburgh Mathematical Society (Funder), , London Mathematical Society (Funder), Mao, X., Luo, Qi, Luo, Q., Mao, Xuerong, National Natural Science Foundation of China (Funder), Edinburgh Mathematical Society (Funder), , National Natural Science Foundation of China (Funder), London Mathematical Society (Funder), , EPSRC (UK) (Funder), EPSRC (UK) (Funder)   +11 more
core   +1 more source

A STUDY OF SOLID STATE LASER PASSIVE OPTICAL Q-SWITCHING OPERATION REGIME (Part 1) [PDF]

INCAS Bulletin, 2009
This paper is the first of a four series treating, theoretically with experimental comparison, the issue of solid state laser passive optical Q-switching regime.
Ion LĂNCRĂNJAN
doaj   +1 more source

Q switching by self-focusing [PDF]

Optics Letters, 1985
A novel passive technique for obtaining short-laser-pulse emission is presented. A cell with a high-second-order refractive-index liquid is included in an unstable laser cavity. The external self-focusing introduced by the cell at higher optical intensities reduces the diffraction losses, producing modulation of the gain and Q switching of the cavity ...
M C, Marconi, O E, Martinez, F P, Diodati   +2 more
openaire   +2 more sources

A Novel α-BaTeMo₂O₉ Acousto-Optic Switch for Generating Stable 639 nm Pulsed Laser

Photonics, 2023
In this paper, an acousto-optic (AO) Q-switch based on α-BaTeMo2O9 (α-BTM) crystal is designed and further applied to generate a laser pulse at 639 nm for the first time.
Ke Zhang, Feifei Guo, Yicheng Jin, Kuan Li, Lihua Meng, Peifu Wang, Shande Liu, Zeliang Gao, Xutang Tao   +8 more
doaj   +1 more source

Active Switching of Extremely High-Q Fano Resonances Using Vanadium Oxide-Implanted Terahertz Metamaterials

Applied Sciences, 2020
In this paper, we demonstrate an active switching of extremely high Q-factor Fano resonances using vanadium oxide (VO2)-implanted THz asymmetric double C-shaped metamaterial (MM) structures.
Jing Ma, Zhi-Hang Wang, Huan Liu, Ya-Xian Fan, Zhi-Yong Tao   +4 more
doaj   +1 more source

Watt-level high-stability all-solid-state passively Q-switched laser based on germanene nanosheets

Frontiers in Physics, 2022
Excellent Q-switching operations modulated by new two-dimensional (2D) saturable absorber (SA) materials with stable performance is a hot topic in all-solid-state pulsed laser research.
Baohao Xu, Wenjing Tang, Wanggen Sun, Jing Wang, Kai Jiang, Xinyu Hu, Wei Xia   +6 more
doaj   +1 more source

Task Switching in Predictable and Unpredictable Cases [PDF]

, 2010
Fourteen experiments have been run in order to provide evidence regarding the cognitive processes that underlie the switching between simple cognitive tasks.
Andreadis, Nikolaos
core   +7 more sources