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has been cited by the following article:

• TITLE: Design of 1.33 μm and 1.55 μm Wavelengths Quantum Cascade Photodetector

  AUTHORS: S. Khosravi, A. Rostami

  KEYWORDS: Quantum Cascade Photodetector, III-Nitride Multi Quantum Well, Responsivity and Detectivity

  JOURNAL NAME: Optics and Photonics Journal, Vol.7 No.8B, August 10, 2017

  ABSTRACT: In this paper, a quantum cascade photodetector based on intersubband transitions in quantum wells with ability of detecting 1.33 μm and 1.55 μm wavelengths in two individual current paths is introduced. Multi quantum wells structures based on III-Nitride materials due to their large band gaps are used. In order to calculate the photodetector parameters, wave functions and energy levels are obtained by solving 1-D Schrodinger–Poisson equation self consistently at 80 ?K. Responsivity values are about 22 mA/W and 18.75 mA/W for detecting of 1.33 μm and 1.55 μm wavelengths, respectively. Detectivity values are calculated as 1.17 × 107 (Jones) and 2.41 × 107 (Jones) at wavelengths of 1.33 μm and 1.55 μm wavelengths, respectively.