IEEE PHOTONICS TECHNOLOGY LETTERS, vol.23, no.19, pp.1370-1372, 2011 (SCI-Expanded)
Article / Article
IEEE PHOTONICS TECHNOLOGY LETTERS
Science Citation Index Expanded (SCI-EXPANDED), Scopus
Dark current, dual-band infrared photodetector, photocurrent, voltage-tunable
Anadolu University Affiliated:
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.