High-power, high-wall-plug-efficiency quantum cascade lasers with high-brightness in continuous wave operation at 3–300μm

Abstract Quantum cascade lasers (QCLs) are unipolar quantum devices based on inter-sub-band transitions. They break the electron-hole recombination mechanism in traditional semiconductor lasers, overcome the long-lasting bottleneck which is that the emission wavelength of semiconductor laser is comp...

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Bibliographic Details
Main Authors: Manijeh Razeghi, Yanbo Bai, Feihu Wang
Format: Article
Language:English
Published: Nature Publishing Group 2025-07-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-025-01935-6
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