Detection of optical signals Detection of Optical Signals provides a comprehensive overview of important technologies for photon detection from the X ray through ultraviolet visible infrared to far infrared spectral regions. It uniquely combines perspectives from many disciplines particularly within physics and electronics which are necessary to have a complete understanding of optical receivers. This interdisciplinary textbook aims to: Guide readers into more detailed and technical treatments of readout optical signals Give a broad overview of optical signal detection including terahertz region and two dimensional material Help readers further their studies by offering chapter end problems and recommended reading. This will be an invaluable resource for graduate students in physics and engineering as well as a helpful refresher for those already working with aerospace sensors and systems remote sensing thermal imaging military imaging optical telecommunications infrared spectroscopy and light detection