New Insights Reached via Graded-Interfaces Modeling: How High-Power, High-Efficiency Mid-Infrared QCLs Work

New Insights Reached via Graded-Interfaces Modeling: How High-Power, High-Efficiency Mid-Infrared QCLs Work

Graded-interfaces modeling unveils key features of high-power, high-efficiency quantum-cascade lasers (QCLs): direct resonant-tunneling injection from a prior-stage, low-energy state into the upper-laser (<i>ul</i>) level, over a wide (~50 nm) multiple-barrier region; and a new type of p...

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Bibliographic Details
Main Authors: Dan Botez, Suraj Suri, Huilong Gao, Thomas Grange, Jeremy D. Kirch, Luke J. Mawst, Robert A. Marsland
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Photonics
Subjects:
graded-interfaces modeling
prior-stage injection into upper laser level
injectionless quantum cascade laser
photon-induced carrier transport
interface-roughness scattering
thermally activated shunt-type carrier leakage
Online Access:https://www.mdpi.com/2304-6732/12/2/93
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