Infrared technologies are very important for a wide range of military, scientific and commercial applications. Devices and systems based on semiconductor heterostructure and quantum well and quantum dot structures open up a new era in infrared technologies.This book deals with various topics related to the latest achievements in the development of intersubband infrared photodetectors, reviewed by top experts in the field. It covers physical aspects of the operation of the devices as well as details of their design in different applications. The papers included in the book will be useful for researchers and engineers interested in the physics of optoelectronic devices as well as their practical design and applications.Contents: Quantum Well Infrared Photoconductors in Infrared Detectors Technology (A Rogalski)Imaging Performance of Advanced QWIP Focal Plane Arrays (A Goldberg)GaAs/AlGaAs Multi-Quantum-Well-Based Infrared Focal Plane Arrays for Infrared Imaging Applications (S D Gunapala & S V Bandara)Corrugated Quantum Well Infrared Photodetectors and Arrays (K K Choi)Multi-Color, Broadband Quantum Well Infrared Photodetectors for Mid-, Long-, and Very Long-Wavelength Infrared Applications (S S Li)QWIPs Designed for High Absorption and High Operating Temperature (H C Liu et al.)Quantum Structures for Far-Infrared Detection (A G U Perera & S G Matsik)Germanium Self-Assembled Quantum Dots in Silicon for Mid-Infrared Photodetectors (A I Yakimov & A V Dvurechenskii)QWIP–LED Pixelless Thermal Imaging Device (H C Liu et al.)Electrodynamic Response of Multiple Quantum Wells. The Intersubband Resonance Region (M Zaluzny & W Zietkowski)Readership: Graduate students, researchers and practitioners in electrical & electronic engineering, optoelectronics and physics.