Results 21 to 30 of about 1,396,787 (284)

Unveiling quantum-limited operation of interband cascade lasers

open access: yesAPL 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

Molecular spectroscopy with a multimode THz quantum-cascade laser [PDF]

open access: yes, 2011
A terahertz absorption spectrometer for highresolution molecular spectroscopy is realized. The spectrometer is based on a multimode quantum-cascade laser. The design and performance of the spectrometer are presented.
A. D. Semenov   +19 more
core   +1 more source

Cascade Type-I Quantum Well GaSb-Based Diode Lasers

open access: yesPhotonics, 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

Quantum dot cascade laser [PDF]

open access: yesNanoscale Research Letters, 2014
Abstract We demonstrated an unambiguous quantum dot cascade laser based on InGaAs/GaAs/InAs/InAlAs heterostructure by making use of self-assembled quantum dots in the Stranski-Krastanow growth mode and two-step strain compensation active region design.
Zhuo, Ning   +6 more
openaire   +2 more sources

Long-term stability of GaAs/AlAs terahertz quantum-cascade lasers

open access: yesAIP 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

A compact, continuous-wave terahertz source based on a quantum-cascade laser and a miniature cryocooler [PDF]

open access: yes, 2010
We report on the development of a compact, easy-to-use terahertz radiation source, which combines a quantum cascade laser (QCL) operating at 3.1 THz with a compact, low input-power Stirling cooler.
Semenov, Alexey   +10 more
core   +1 more source

Ultrashort-pulse generation from quantum-dot semiconductor diode lasers [PDF]

open access: yes, 2008
In this thesis, novel regimes of mode locking in quantum dot semiconductor laser diodes have been investigated by exploiting the unique features offered by quantum dots.
Cataluna, Maria Ana
core   +2 more sources

Optical information processing using dual state quantum dot lasers: complexity through simplicity

open access: yesLight: Science & Applications, 2021
We review results on the optical injection of dual state InAs quantum dot-based semiconductor lasers. The two states in question are the so-called ground state and first excited state of the laser. This ability to lase from two different energy states is
Bryan Kelleher   +2 more
doaj   +1 more source

InAs-based distributed feedback interband cascade lasers [PDF]

open access: yes, 2015
The authors acknowledge the financial support from the European Commission in the frame of the FP7 project “WideLase” (Grant No. 318798).Single mode emission of InAs-based interband cascade lasers using lateral metal gratings that provide distributed ...
Dallner, M.   +6 more
core   +1 more source

Numerical simulation and design of semiconductor quantum dot-based lasers and amplifiers [PDF]

open access: yes, 2013
Numerical simulation and design of semiconductor quantum dot-based lasers and ...
Xu, Tianhong
core   +1 more source

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