Results 21 to 30 of about 14,234 (351)

Theory for passive mode-locking in semiconductor laser structures including the effects of self-phase modulation, dispersion, and pulse collisions

IEEE Journal of Quantum Electronics, 1996
R Van Roijen
exaly   +3 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

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

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

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

Cavity-enhanced excitation of a quantum dot in the picosecond regime

New Journal of Physics, 2023
A major challenge in generating single photons with a single emitter is to excite the emitter while avoiding laser leakage into the collection path. Ideally, any scheme to suppress this leakage should not result in a loss in the efficiency of the single ...
Alisa Javadi, Natasha Tomm, Nadia O Antoniadis, Alistair J Brash, Rüdiger Schott, Sascha R Valentin, Andreas D Wieck, Arne Ludwig, Richard J Warburton   +8 more
doaj   +1 more source

Excited Non-Local Microelongated Semiconductor Layer Thermal-Optical Mechanical Waves Affected by Rotational Field

Crystals, 2023
The main goal of this research is to provide a novel model that describes an optically heated layer of an excited non-local microelongated semiconductor material. In a rotating field, the model is examined as the photo-excitation processes occur.
Shreen El-Sapa, Weaam Alhejaili, Khaled Lotfy, Alaa A. El-Bary   +3 more
doaj   +1 more source