Results 351 to 360 of about 308,424 (390)
Some of the next articles are maybe not open access.
Theory of optical gain and threshold properties of semiconductor lasers
IEEE Journal of Quantum Electronics, 1974The theory of optical gain in highly doped semiconductors employed for semiconductor lasers is developed based on the Green function approach. With the help of the analytical expression obtained for optical gain, the threshold properties of semiconductor lasers and their dependence on concentration of doping impurities and on temperature are studied ...
A. Aleksanian +2 more
openaire +2 more sources
Phonon-assisted transitions and optical gain in indirect semiconductors
Physical Review B, 2010Microscopic semiconductor theory is applied to an indirect Si-type semiconductor quantum well system. We discuss the absorption and stimulated emission of light accompanied by the creation or annihilation of phonons. We find strong differences to the optical properties of conventional direct semiconductors, including an asymmetric behavior where the ...
Sebastian Imhof, Angela Thränhardt
openaire +2 more sources
Generalized optical gain analysis in nonparabolic semiconductor laser
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2013SUMMARYA simple generalized theory is developed for optical gain of nonparabolic semiconductor lasers based on the three‐band model of Kane, by taking into account the wave‐vector () dependence of the optical matrix element. The gain in laser of nonparabolic semiconductors is demonstrated, by taking InAs, InSb, Hg1−xCdxTe and In1−xGaxAsyP1−y lattice ...
Debasree Chanda +2 more
openaire +2 more sources
Optical switching in the semiconductor directional coupler with saturated gain
Journal of Applied Physics, 1989A detailed theoretical study of optical switching by gain saturation-induced phase shift in semiconductor directional couplers has been carried out by solving the electromagnetic equation for a spatially inhomogeneous refractive index distribution using the method of Yeh, Brown, and Szejn [Appl. Opt. 18, 489 (1979)].
openaire +2 more sources
Towards zero-threshold optical gain using charged semiconductor quantum dots.
Nature Nanotechnology, 2017Kaifeng Wu +3 more
semanticscholar +1 more source
112 Gb/s PAM4 transmission over 40km SSMF using 1.3 µm gain-clamped semiconductor optical amplifier
Optical Fiber Communications Conference and Exhibition, 2015T. Chan, W. Way
semanticscholar +1 more source
Experimental study of optical frequency comb generation in gain-switched semiconductor lasers
Optics and Laser Technology, 2018A. Rosado +5 more
semanticscholar +1 more source
Oxygen Vacant Semiconductor Photocatalysts
Advanced Functional Materials, 2021Hongwei Huang, Tianyi Ma, Yihe Zhang
exaly