Results 21 to 30 of about 3,452 (196)

Photoluminescence quenching mechanisms in type II InAs/GaInSb QWs on InAs substrates [PDF]

open access: yes, 2016
We would like to acknowledge the National Science Centre of Poland for support within Grant No. 2014/15/B/ST7/04663.Optical properties of AlSb/InAs/GaInSb/InAs/AlSb quantum wells (QWs) grown on an InAs substrate were investigated from the point of view ...
Dallner, M.   +8 more
core   +4 more sources

Nonlinear Dynamics of Mid-Infrared Interband Cascade Lasers Subject to Variable-Aperture Optical Feedback

open access: yesPhotonics, 2022
In this work, we experimentally investigate the nonlinear dynamics of an interband cascade laser (ICL) under variable-aperture optical feedback implemented by a gold mirror combining with a ring-actuated iris diaphragm (RAID). By continuously varying the
Maorong Zhao   +7 more
doaj   +1 more source

Interband Mid-IR Semiconductor Lasers

open access: yesIEEE Photonics Journal, 2010
Significant advances in the room-temperature (RT) continuous-wave (CW) output power of both type-I quantum-well (QW) active-layer lasers and interband cascade lasers have been reported within the 3–4- $\mu\hbox{m}$ wavelength region in 2009 ...
L. J. Mawst
doaj   +1 more source

Interband Cascade Photonic Integrated Circuits on Native III-V Chip

open access: yesSensors, 2021
We describe how a midwave infrared photonic integrated circuit (PIC) that combines lasers, detectors, passive waveguides, and other optical elements may be constructed on the native GaSb substrate of an interband cascade laser (ICL) structure. The active
Jerry R. Meyer   +6 more
doaj   +1 more source

Infrared generation in low-dimensional semiconductor heterostructures via quantum coherence [PDF]

open access: yes, 2000
A new scheme for infrared generation without population inversion between subbands in quantum-well and quantum-dot lasers is presented and documented by detailed calculations.
A. A. Belyanin   +28 more
core   +3 more sources

New Opportunities in Mid-Infrared Emission Control

open access: yesSensors, 2015
Tunable laser absorption spectroscopy (TLAS) has been well accepted as a preferred measurement technique for many industrial applications in recent years, especially for in situ applications. Previously, mainly near-infrared lasers have been used in TLAS
Peter Geiser
doaj   +1 more source

Progress towards photonic crystal quantum cascade laser [PDF]

open access: yes, 2004
The work describes recent progress in the design, simulation, implementation and characterisation of photonic crystal (PhC) GaAs-based quantum cascade lasers (QCLs).
C.D. Farmer   +4 more
core   +1 more source

Theoretical design of mid-infrared interband cascade lasers in SiGeSn system

open access: yesNew Journal of Physics, 2020
By carefully analyzing the latest composition-dependent parameters of SiGeSn alloys, we come to realize that this system could provide type-II energy band alignment at direct bandgap condition.
Yuan Li   +6 more
doaj   +1 more source

Interferometric Technique for the Spectral Characterization of High Frequency Current-Modulated Mid-Infrared Semiconductor Lasers

open access: yesPhotonics, 2021
We describe two methods, based on Michelson interferometery, that enable the determination of the absolute wavelength of current-modulated semiconductor lasers.
Marc-Simon Bahr, Marcus Wolff
doaj   +1 more source

Polarization-independent gain in mid-infrared interband cascade lasers

open access: yesAIP Advances, 2016
We have calculated the gain function of a type-II W-design AlSb/InAs/GaAsSb/InAs/AlSb quantum wells to be used in an active region of interband cascade lasers, for two linear polarizations of in-plane propagating light: transverse-electric and transverse-
K. Ryczko, G. Sęk
doaj   +1 more source

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