volume | PIER Journals

Abstract

Selective wavelength tuning of multiple quantum well based infrared photodetector is achieved by nonuniform doping distribution as well as dimensional variation in the structure. Result is obtained from the computation of the intersubband transition energy through self-consistent solution of the Poisson's and Schrödinger equations with appropriate boundary conditions. Absorption coefficient is estimated in presence of external electric field applied along the direction of confinement. Suitable choice of structural parameters is required to tailor the peak position of absorption spectra for application in the infrared range as optical receiver.

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Ms. Kasturi Mukherjee

Dr. Nikhil Ranjan Das