Results 71 to 80 of about 171,254 (238)

A comparison of amplitude-phase coupling and linewidth enhancement in semiconductor quantum-well and bulk lasers [PDF]

, 1993
The amplitude-phase coupling factor α (linewidth enhancement factor) is compared for typical semiconductor quantum-well and bulk double heterostructure lasers.
Chen, T. R., Yariv, A., Zhao, B.
core   +1 more source

Superradiance on the millihertz linewidth strontium clock transition [PDF]

Science Advances, 2016
Researchers demonstrate superradiant emission from the 150-s lifetime strontium clock transition. Laser frequency noise contributes a significant limitation to today’s best atomic clocks.
M. Norcia, Matthew N Winchester, J. R. Cline, James K. Thompson   +3 more
semanticscholar   +1 more source

All-solid continuous-wave Nd: YVO4-diamond intracavity Raman laser

Functional Diamond
We demonstrated a continuous intracavity diamond Raman laser operating by linear-cavity and V-cavity design. The diamond crystal as the Raman medium and Nd: YVO4 as the laser gain medium was utilized to achieve high beam quality Stokes output with narrow
Yunpeng Cai, Yaxuan Duan, Hui Chen, Bingzheng Yan, Yaoyao Qi, Zhenxu Bai, Yulei Wang, Zhiwei Lu, Jie Ding   +8 more
doaj   +1 more source

An ultrastable silicon cavity in a continuously operating closed-cycle cryostat at 4 K [PDF]

, 2017
We report on a laser locked to a silicon cavity operating continuously at 4 K with $1 \times 10^{-16}$ instability and a median linewidth of 17 mHz at 1542 nm.
Benko, C., Hall, J. L., Legero, T., Matei, D. G., Oelker, E., Riehle, F., Robinson, J. M., Sonderhouse, L., Sterr, U., Ye, J., Zhang, W.   +10 more
core   +2 more sources

Narrow-Linewidth 2 μm All-Fiber Laser Amplifier with a Highly Stable and Precisely Tunable Wavelength for Gas Molecule Absorption in Photonic Crystal Hollow-Core Fibers

Molecules, 2021
In recent years, mid-infrared fiber lasers based on gas-filled photonic crystal hollow-core fibers (HCFs) have attracted enormous attention. They provide a potential method for the generation of high-power mid-infrared emissions, particularly beyond 4 μm.
Wenxi Pei, Hao Li, Yulong Cui, Zhiyue Zhou, Meng Wang, Zefeng Wang   +5 more
doaj   +1 more source

Intrinsic Exciton Linewidth in Monolayer Transition Metal Dichalcogenides [PDF]

, 2014
Monolayer transition metal dichalcogenides feature Coulomb-bound electron-hole pairs (excitons) with exceptionally large binding energy and coupled spin and valley degrees of freedom. These unique attributes have been leveraged for electrical and optical
Bergauser, Gunnar, Chen, Chang-Hsiao, Clark, Genevieve, Dass, Chandriker Kavir, Hao, Kai, Knorr, Andreas, Li, Lain-Jong, Li, Xiaoqin, Malic, Ermin, Moody, Galan, Singh, Akshay, Tran, Kha, Xu, Xiaodong   +12 more
core   +2 more sources

Ultra-narrow linewidth laser based on a semiconductor gain chip and extended Si3N4 Bragg grating.

Optics Letters, 2019
We demonstrate ultra-narrow linewidth fixed wavelength hybrid lasers composing a semiconductor gain chip and extended silicon nitride Bragg grating. Fabricated ultra-low κ Bragg gratings provide a narrow bandwidth and high side-lobe suppression ratio.
C. Xiang, P. Morton, J. Bowers
semanticscholar   +1 more source

Effective linewidth shifts in single-molecule detection using optical whispering gallery modes

, 2020
Here, we report shifts of the linewidth of a plasmon enhanced whispering gallery mode (WGM) of a glass microsphere cavity due to binding of single sub-kDa molecules. The observed linewidth of the WGM can either increase or decrease upon binding of single
S. Subramanian, S. Vincent, F. Vollmer
semanticscholar   +1 more source

Classical demonstration of frequency dependent noise ellipse rotation using Optomechanically Induced Transparency

, 2014
Cavities with extremely narrow linewidth of 10-100 Hz are required for realizing frequency dependent squeezing to enable gravitational wave detectors to surpass the free mass standard quantum limit over a broad frequency range.
Blair, David G., Chen, Xu, Ju, Li, Ma, Yiqiu, Qin, Jiayi, Zhao, Chunnong   +5 more
core   +1 more source

Semiclassical limits to the linewidth of an atom laser [PDF]

, 2006
We investigate the linewidth of a quasi-continuous atom laser within a semiclassical framework. In the high flux regime, the lasing mode can exhibit a number of undesirable features such as density fluctuations.
A. Wicht, Cristina Figl, John Close, Joseph Hope, Julien Dugué, Matthew Jeppesen, Mattias Johnsson, Nick Robins, Simon Haine   +8 more
core   +2 more sources