Semiconductor Lasers and Optoelectronic Devices: Technologies and Applications

Dear Colleagues,

This Special Issue focuses on the rapidly advancing field of mid-infrared (mid-IR) semiconductor lasers and optoelectronic devices, with emphasis on Interband Cascade Lasers (ICLs), Quantum Cascade Lasers (QCLs), type-II superlattice devices and emerging mid-IR technologies. Mid-IR light sources and detectors are essential for diverse applications including gas sensing, environmental monitoring, industrial process control, biomedical diagnostics, free-space optical communications, thermal imaging, spectroscopy, remote sensing, and defense application.

First, the Special Issue aims to highlight recent advances in epitaxial growth, band-structure engineering, device modeling, waveguide design and fabrication processes.

Second, the Special Issue seeks to explore applications and emerging technologies, including machine learning and AI-assisted device design and optimization, medical diagnostics, precision agriculture monitoring, industry sensors.

Detailed surveys and research papers on theoretical and experimental developments are welcome. Topics of interest include, but are not limited to, the following:

• Epitaxial growth and band-structure engineering of mid-IR materials
• Device design and modeling: ICLs, QCLs, photodetectors, and LEDs
• Waveguide structures and optical-mode engineering
• Fabrication processes and advanced lithography techniques
• Packaging, thermal management, and reliability
• High-power devices, beam combining, and frequency combs
• Gas sensing, environmental monitoring, and spectroscopy applications
• Medical, biomedical, and life science applications
• Industrial and medical applications
• AI-assisted design and manufacturing optimization

Dr. De He
Prof. Dr. Zhiyuan Zhu
Guest Editors

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