Intersubband transitions in quantum wells have attracted tremendous attention in recent years, mainly due to the promise of applications in the mid and far-infrared regions (2--20 mum). Many of the papers presented in Quantum Well Intersubband Transition Physics and Devices are on the basic linear intersubband transition processes, detector physics and detector application, reflecting the current state of understanding and detector applications, where highly uniform, large focal plane arrays have been demonstrated. Other areas are still in their early stages, including infrared modulation, harmonic generation and emission.

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Detector Applications.- Random Scattering Optical Couplers for Quantum Well Infrared Photodetectors.- Performance of Grating Coupled AlGaAs/GaAs Quantum Well Infrared Detectors and Detector Arrays.- Novel Grating Coupled and Normal Incidence III-V Quantum Well Infrared Photodetectors with Background Limited Performance at 77 K.- Background Limited 128×128 GaAs/AlGaAs Multiple Quantum Well Infrared Focal Plane Arrays.- Imaging Performance of LWIR MiniBand Transport Multiple Quantum Well Infrared Focal Plane Arrays.- Modeled Performance of Multiple Quantum Well Infrared Detectors in IR Sensor Systems.- GaAs/AlGaAs QWIPs vs. HgCdTe Photodetectors for LWIR Applications.- Detector Physics.- The Physics of Emission-RecomBination in Multiquantum Well Structures.- Physics of Single Quantum Well Infrared Photodetectors.- A Three-color Voltage TunaBle Quantum Well IntersuBBand Photodetector for Long Wavelength Infrared.- Multi ? Controlled Operation of Quantum Well IR Detectors Using Electric Field Switching and Rearrangement.- Infrared Hot-Electron Transistor Design Optimization.- 16 ?m Infrared Hot Electron Transistor.- Long Wavelength ?c=18?m Infrared Hot Electron Transistor.- A Novel Transport Mechanism for Photovoltaic Quantum Well IntersuBBand Infrared Detectors.- IntersuBBand Stark-Ladder Transitions in MiniBand-Transport Quantum-Well Infrared Detectors.- CO2-Laser Heterodyne Detection with GaAs/AlGaAs MQW Structures.- IntersuBBand Transition Experimental.- IntersuBBand ABsorption in n-Type Si and Ge Quantum Wells.- IntersuBBand Transitions in p-Type SiGe/Si Quantum Wells for Normal Incidence Infrared Detection.- Large Energy IntersuBBand Transitions in High Indium Content InGaAs/AlGaAs Quantum Wells.- Applications of High Indium Content InGaAs/AlGaAs Quantum Wells inthe 27 ?m Regime.- Spectroscopy of Narrow MiniBands in the Continuum of Multi Quantum Wells.- IntersuBBand ABsorption in Strongly Coupled Superlattices: MiniBand Dispersion, Critical Points, and Oscillator Strengths.- Electronic Quarter-Wave Stacks and Bragg Reflectors: Physics of Localized Continuum States in Quantum Semiconductor Structures.- Modulation of the Optical ABsorption By Electric-Field-Induced Quantum Interference in Coupled Quantum Wells.- Phase Retardation and Induced Birefringence Related to IntersuBBand Transitions in Multiple Quantum Well Structures.- The Interaction of Photoexcited e-h Pairs with a Two Dimensional Electron Gas Studied By IntersuBBand Spectroscopy.- Photoinduced IntersuBBand Transitions in GaAs/AlGaAs Asymmetric Coupled Quantum Wells.- Far Infrared Spectroscopy of IntersuBBand Transitions in Multiple Quantum Well Structures.- OBservation of IntersuBBand Transitions in Asymmetric ?-Doped GaAs, InSB, and InAs Structures.- Effects of Coupling on IntersuBBand Transitions.- On Some Peculiarities of IntersuBBand ABsorption in Semiconductor Quantum Wells.- The Relative Strengths of InterBand and IntersuBBand Optical Transitions: Breakdown of the Atomic Dipole Approximation for InterBand Transitions.- Optical Transitions and Energy Level Ordering for Quantum Confined Impurities.- SuBBand Structures of Superlattices under Strong In-Plane Magnetic Fields.- IntersuBBand Relaxation.- Temperature Dependent IntersuBBand Dynamics in n-Modulation Doped Quantum Well Structures.- Ultrafast Dynamics of Electronic Capture and IntersuBBand Relaxation in GaAs Quantum Well.- Structure-Dependent Electron-Phonon Interactions.- Nonlinear Phenomena.- Second Harmonic Generation in p-Type Quantum Wells.- Resonant Harmonic Generation Near 100?m in anAsymmetric DouBle Quantum Well.- Second Harmonic Generation in GaAs-AlAs and Si-SiGe Quantum Well Structures.- Non-Resonant Two-Photon ABsorption in Quantum Well Infrared Detectors.- Optical Saturation of IntersuBBand Transitions.- Novel Phenomena.- Use of Classically Free QuasiBound States for Infrared Emission.- Evidence for LWIR Emission Using IntersuBBand Transitions in GaAs/AlGaAs MQW Structures.- Fast Data Coding Using Modulation of InterBand Optical Properties By IntersuBBand ABsorption in Quantum Wells.- Theory of Terahertz Generation due to Quantum Beats in Quantum Wells.- Far-Infrared Study of an Antenna-Coupled Quantum Point Contact.- Control of Electron Population By IntersuBBand Optical Excitation in a Novel Asymmetric DouBle Quantum Well Structure.