Voltage Tunable Dual-Band Quantum-Well Infrared Photodetector for Third-Generation Thermal Imaging
- Sokmen, I.
- Sakiroglu, SERPİL
- Hostut, M.
- Kilic, A.
- Ergun, Y.
Publication date
October 2011
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
We investigate the theoretical calculations of the voltage tunable dual-band quantum-well infrared photodetector (QWIP) in the long and very long wavelength infrared range (LWIR and VLWIR). The detector consists of two serially connected GaAs/AlGaAs stacks which have spectral responses of 8.4- and 14-mu m wavelengths, respectively. The peak responsivity wavelength of the stacks shifts from 8.4 to 14 mu m as the bias voltage is increased
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