Results 21 to 30 of about 28,891 (190)
Photonics, 2020 We review the history, development, design principles, experimental operating characteristics, and specialized architectures of interband cascade lasers for the mid-wave infrared spectral region.
Jerry R. Meyer +6 more
doaj +1 more source
MOVPE Technology of Fe-Compensated In PLayers for the Quantum Cascade Laser Applications [PDF]
International Journal of Electronics and Telecommunications, 2020 Quantum cascade laser is one of the most sophisticated semiconductor devices. Its technology requires extremely high precision and layers quality. Device performance is limited by thermal extraction form laser core.
Mikołaj Badura
doaj +1 more source
Unveiling quantum-limited operation of interband cascade lasers
APL Photonics, 2020 A comprehensive experimental analysis of the frequency fluctuations of a mid-infrared interband cascade laser, down to the quantum-limited operation, is reported.
Simone Borri +4 more
doaj +1 more source
Self-consistent analysis of carrier-transport and carrier-capture dynamics in quantum cascade intersubband semiconductor lasers [PDF]
, 2000 A methodology for the self-consistent analysis of carrier transport and carrier capture aspects of the dynamics of quantum cascade intersubband semiconductor lasers is described in this paper. The approach is used to analyze two prototype quantum cascade
Cheung, C.Y.L. +3 more
core +1 more source
Substrate orientation and alloy composition effects in n-type SiGe quantum cascade structures [PDF]
, 2008 We show using a theoretical self-consistent effective mass/rate equation approach that n-type SiGe-based quantum cascade lasers are potentially made viable by either using the (111) orientation or a Ge-rich ...
Evans, C.A. +4 more
core +1 more source
Cascade Type-I Quantum Well GaSb-Based Diode Lasers
Photonics, 2016 Cascade pumping of type-I quantum well gain sections was utilized to increase output power and efficiency of GaSb-based diode lasers operating in a spectral region from 1.9 to 3.3 μm.
Leon Shterengas +5 more
doaj +1 more source
Physics Today, 2014 This chapter describes the most commonly used approaches for computing the band structure of active materials with intersubband optical transitions. The physics of quantum cascade lasers (QCLs) is discussed in detail, including the mechanisms that limit the threshold current density, threshold voltage, wall-plug efficiency, and temperature sensitivity ...
openaire +1 more source
Electron transport and terahertz gain in quantum-dot cascades [PDF]
, 2008 Electron transport through quantum-dot (QD) cascades was investigated using the formalism of nonequilibrium Green's functions within the self-consistent Born approximation.
Harrison, P. +3 more
core +1 more source
Long-term stability of GaAs/AlAs terahertz quantum-cascade lasers
AIP Advances, 2022 We have investigated high-performance GaAs/AlAs terahertz (THz) quantum-cascade lasers (QCLs) with respect to the long-term stability of their operating parameters.
L. Schrottke +4 more
doaj +1 more source
Coherent instabilities in a semiconductor laser with fast gain recovery [PDF]
, 2006 We report the observation of a coherent multimode instability in quantum cascade lasers (QCLs), which is driven by the same fundamental mechanism of Rabi oscillations as the elusive Risken-Nummedal-Graham-Haken (RNGH) instability predicted 40 years ago ...
A. Belyanin +20 more
core +2 more sources