Author/Authors :
Ting، نويسنده , , David Z.-Y. and Bandara، نويسنده , , Sumith V. and Mumolo، نويسنده , , Jason and Keo، نويسنده , , Sam A. and Nguyen، نويسنده , , Jean and Liu، نويسنده , , H.C. and Song، نويسنده , , C.Y. and Chang، نويسنده , , Yia-Chung and Rafol، نويسنده , , Sir B. and Hill، نويسنده , , Cory J. and Gunapala، نويسنده , , Sarath D. and Soibel، نويسنده , , Alexander and Liu، نويسنده , , John K. and Blazejewsk، نويسنده ,
Abstract :
We report work on several quantum structure based infrared detectors. We describe the concept of the submonolayer quantum dot based infrared photodetectors, report device results, and present imaging results from a megapixel focal plane array. We describe the concept and experimental progress of the quantum well intra-subband photodetector (QWISP), which is closely related to the quantum well infrared photodetector (QWIP), but uses the dopant-assisted intra-subband absorption mechanism in quantum wells for normal-incidence far infrared/terahertz radiation detection. We discuss aspects of superlattice heterostructure based barrier infrared detectors (BIRDs).
Keywords :
Infrared detector , Quantum well , Quantum dot , Superlattice , QWIP
