Results 91 to 100 of about 171,254 (238)

Resonance Plasmon Linewidth Oscillations in Spheroidal Metallic Nanoparticle Embedded in a Dielectric Matrix

, 2012
The kinetic approach is applied to calculate oscillations of a surface plasmon linewidth in a spheroidal metal nanoparticle embedded in any dielectric media. The principal attention is focused on the case, when the free electron path is much greater than
Bohren C. F., Kittel Ch., Landau L. D., Miller M. M., Mishchenko M. I., N. I. Grigorchuk, Rayleigh J., van de Hulst H. C.   +7 more
core   +1 more source

2.19 kW narrow linewidth FBG-based MOPA configuration fiber laser.

Optics Express, 2019
In this paper, we demonstrated a monolithic fiber-Bragg-grating-based (FBG-based) master oscillator power amplification configuration fiber laser with a narrow linewidth at high-power level.
Yusheng Huang, P. Yan, Zehui Wang, Jiading Tian, Dan Li, Q. Xiao, M. Gong   +6 more
semanticscholar   +1 more source

Phonon-Limited-Linewidth of Brillouin Lasers at Cryogenic Temperatures. [PDF]

Physical Review Letters, 2017
Laser linewidth is of central importance in spectroscopy, frequency metrology, and all applications of lasers requiring high coherence. It is also of fundamental importance, because the Schawlow-Townes laser linewidth limit is of quantum origin. Recently,
M. Suh, Qifan Yang, K. Vahala
semanticscholar   +1 more source

Generation of Narrow-Band Polarization-Entangled Photon Pairs for Atomic Quantum Memories

, 2008
We report an experimental realization of a narrow-band polarization-entangled photon source with a linewidth of 9.6 MHz through cavity-enhanced spontaneous parametric down-conversion.
Bao, Xiao-Hui, Chen, Zeng-Bing, Pan, Jian-Wei, Qian, Yong, Yang, Jian, Yang, Tao, Zhang, Han   +6 more
core   +1 more source

Linewidth Enhancement Factor in InAs/GaAs Quantum Dot Lasers and Its Implication in Isolator-Free and Narrow Linewidth Applications

IEEE Journal of Selected Topics in Quantum Electronics, 2019
The linewidth enhancement factor ($\alpha _\mathrm{H}$) is an important parameter for semiconductor lasers. In this paper, we investigate, both theoretically and experimentally, the key parameters that affect $\alpha _\mathrm{H}$ of InAs/GaAs quantum dot
Zeyu Zhang, D. Jung, J. Norman, W. Chow, J. Bowers   +4 more
semanticscholar   +1 more source

Modified Confinement Model for Size Dependent Raman Shift and Linewidth of Silicon Nanocrystals

, 2009
A modified phonon confinement model considering the size distribution, an improved phonon dispersion curve and a confinement function is developed for the calculation of size dependent Raman spectra of the silicon (Si) nanocrystals.
Arora, Campbell, Cheng, Diéguez, Ehbrecht, Ehbrecht, Faraci, Li, Nilsson, Paillard, Parayanthal, Pennisi, Piscanec, Prafulla K. Jha, Richter, Sanjeev K. Gupta, Seto, Sirenko, Tubino, Xia, Zi, Zi   +21 more
core   +1 more source

Spectral Linewidth vs. Front Facet Reflectivity of 780 nm DFB Diode Lasers at High Optical Output Power

Applied Sciences, 2018
The influence of the front facet reflectivity on the spectral linewidth of high power DFB (distributed feedback) diode lasers emitting at 780 nm has been investigated theoretically and experimentally.
Thanh-Phuong Nguyen, Hans Wenzel, Olaf Brox, Frank Bugge, Peter Ressel, Max Schiemangk, Andreas Wicht, Tran Quoc Tien, Günther Tränkle   +8 more
doaj   +1 more source

Observation of sub-natural linewidths for cold atoms in a magneto-optic trap

, 2002
We have studied the absorption of a weak probe beam through cold rubidium atoms in a magneto-optic trap. The absorption spectrum shows two peaks with the smaller peak having linewidth as small as 28% of the natural linewidth.
, , A Wasan, Cohen-Tannoudji C., Grison D., Gruneisen M. T., Harris S. E., Ketterle W., U. D Rapol, V Natarajan   +9 more
core   +1 more source

Spaser linewidth enhancement

, 2012
The concept of spaser, as the coherent near-field generator, based on nanometric plasmonic resonators, has been successfully demonstrated in number of experiments. Here we have developed the theoretical framework for description of the basic properties of the spaser linewidth and, in particular, linewidth enhancement.
Ginzburg, Pavel, Zayats, Anatoly V.
openaire   +2 more sources

Spectrum collapse, narrow linewidth, and Bogatov effect in diode lasers locked to high-Q optical microresonators.

Optics Express, 2018
We present a novel method allowing high-power single-frequency emission with sub-kHz linewidth from a compact multi-frequency diode laser locked to high-Q optical microresonator.
R. Galiev, N. Pavlov, N. Kondratiev, S. Koptyaev, V. Lobanov, A. Voloshin, A. Gorodnitskiy, M. Gorodetsky   +7 more
semanticscholar   +1 more source