Terahertz Multicolor Imaging of Opaque Objects Using Self-Mixing Interferometry with Quantum-Cascade Lasers

Terahertz Multicolor Imaging of Opaque Objects Using Self-Mixing Interferometry with Quantum-Cascade Lasers

Self-mixing interference in a terahertz quantum-cascade laser has been demonstrated to be suitable for the detection of weak signals scattered or reflected by the target. This technology has achieved the high-sensitivity detection of complex refractive indices, surface/interface morphologies and mol...

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Bibliographic Details
Main Authors: Jiaxuan Cai, Yan Xie, Yingxin Wang, Meng Chen, Lianhe Li, Mohammed Salih, Edmund H. Linfield, Ning Yang, Weidong Chu, Peng Bai, Ziran Zhao
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Photonics
Subjects:
self-mixing interference
multicolor imaging
quantum-cascade laser
coherent detection
Online Access:https://www.mdpi.com/2304-6732/12/2/109
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