Advances in Infrared Photodetectors

Dear Colleagues,

Infrared photodetectors are core components in a wide range of scientific, industrial, and defense-related applications, including thermal imaging, environmental monitoring, remote sensing, free-space communication, and space surveillance. Over the past decade, continuous advances in infrared materials, device architectures, and readout integration have significantly expanded the performance envelope of infrared detection systems in terms of wavelength coverage, sensitivity, speed, and functionality. In particular, emerging concepts such as broadband and multiband detection, polarization- and spectral-resolved photodetection, and on-chip integrated focal plane technologies have attracted increasing attention.

This Special Issue aims to provide a comprehensive forum for reporting recent progress and emerging trends in infrared photodetectors and related focal plane technologies. Contributions are welcome on both fundamental and applied aspects, including novel infrared materials, device physics, advanced photodetector architectures, focal plane array design, readout and integration strategies, and system-level demonstrations. Special emphasis is placed on long-wavelength and very-long-wavelength infrared detection, silicon-compatible and scalable technologies, and multifunctional and multidimensional photodetection approaches.

By bringing together contributions from diverse research communities, this Special Issue seeks to highlight state-of-the-art developments, identify current challenges, and stimulate future research directions in the rapidly evolving field of infrared photodetection.

Dr. Tao Zhang
Guest Editor

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