Results 1 to 10 of about 11,732 (266)

Semiconductor Laser Linewidth Theory Revisited [PDF]

Applied Sciences, 2021
More and more applications require semiconductor lasers distinguished not only by large modulation bandwidths or high output powers, but also by small spectral linewidths.
Hans Wenzel, Markus Kantner, Mindaugas Radziunas, Uwe Bandelow   +3 more
doaj   +5 more sources

Transient thermoelastic and carrier wave behavior in laser-excited cylindrical semiconductor metamaterial disc [PDF]

Scientific Reports
Semiconductor metamaterials have attracted growing attention due to their ability to manipulate thermal, mechanical, and electronic wave interactions, enabling applications in sensing, energy harvesting, and nanoscale device engineering.
Ahmed M. Alshehri, Khaled Lotfy
doaj   +2 more sources

New Evidence for a Nonclassical Behavior of Laser Multimode Light

Optics, 2022
In this work, we present new experimental evidence of a nonclassical behavior of a multimode Fabry–Perot (FP) semiconductor laser by the measurements of intensity correlation functions.
Michael Lebedev, Andrey Demenev, Andrey Parakhonsky, Oleg Misochko   +3 more
doaj   +1 more source

SILICON SURFACE MICROSTRUCTURING BY SINGLE-EXPOSURE FEMTOSECOND DOUBLE LASER PULSE [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper evaluates the possibility of periodic microstructures formation on the silicon surface by single-exposure double femtosecond laser pulse. Method.
E. V. Kuzmin, G. D. Shandybina, D. S. Polyakov, A. A. Samokhvalov   +3 more
doaj   +1 more source

An Analysis of the Photo-Thermoelastic Waves Due to the Interaction between Electrons and Holes in Semiconductor Materials under Laser Pulses

Mathematics, 2022
In this paper, the interaction between holes and electrons in semiconductor media is analyzed based on the existing mathematical–physical model. The elasto-thermodiffusion (ETD) theory, according to photothermal (PT) transport processes, has been used to
Hashim M. Alshehri, Khaled Lotfy
doaj   +1 more source

Stable pulsed laser diode driver for rangefinder [PDF]

Biuletyn Wojskowej Akademii Technicznej, 2014
This article presents comparison of methods of driving pulse laser diodes. Based on theresults of shown analyses, the new design of pulse laser diode driver, using MOSFET transistor, wasdeveloped.
Marcin Jakubaszek, Marek Zygmunt, Michał Muzal, Andrzej Młodzianko   +3 more
doaj   +1 more source

Microelongated Thermo-Elastodiffusive Waves of Excited Semiconductor Material under Laser Pulses Impact

Mathematics, 2023
The current study focuses on one-dimensional (1D) deformation in an excited microelongated semiconductor medium impacted by optoelectronics with exponential laser-pulsed heat.
Ismail M. Tayel, Kh. Lotfy, Alaa A. El-Bary, Jawdat Alebraheem, Mogtaba A. Y. Mohammed   +4 more
doaj   +1 more source

The Spectrum of Transverse Acoustic Phonons in Planar Multilayer Semiconductor Nanostructures [PDF]

Журнал нано- та електронної фізики, 2016
Based on the elastic continuum model, the theory of displacement of acoustic phonons spectra, arising in flat semiconductor nanostructures, was developed.
I.V. Boyko, A.M. Gryschuk
doaj   +1 more source

Intelligent Modeling for Transfer Function Control of DBR Semiconductor Laser at Near-Working Point

IEEE Access, 2020
In this paper, a novel intelligent modeling method for transfer function control of DBR semiconductor lasers at near-working point is proposed, which is based on the quantum particle swarm optimization (QPSO) algorithm.
Xiufei Li, Zhuo Wang, Lu Yu, Xiaolin Ning, Wei Quan, Yueyang Zhai   +5 more
doaj   +1 more source

Self-pulsating semiconductor lasers: theory and experiment [PDF]

IEEE Journal of Quantum Electronics, 1999
Revtex, 16 pages, 7 ...
Mirasso, C.R., van Tartwijk, G.H.M., Hernandez-Garcia, E., Lenstra, D., Lynch, S., Landais, P., Phelan, I., O'Gorman, J.O., San Miguel, M., Elsaesser, W.   +9 more
openaire   +5 more sources