Chinese Physics B

Control over hysteresis curves and thresholds of optical bistability in different semiconductor double quantum wells

Hamid Reza Hamedi, Mohammad Reza Mehmannavaz, Afshari Hadi

Published Aug 1, 2015• 3 citations

Abstract

The effects of optical field on the phenomenon of optical bistability (OB) are investigated in a K-type semiconductor double quantum well (SDQW) under various parametric conditions. It is shown that the OB threshold can be manipulated by increasing the intensity of coupling field. The dependence of the shift of OB hysteresis curve on probe wavelength detuning is then explored. In order to demonstrate controllability of the OB in this SDQW, we compare the OB features of three different configurations which could arise in this SDQW scheme, i.e., K-type, Y-type, and inverted Y-type systems. The controllability of this semiconductor nanostructure medium makes the presented OB scheme more valuable for applications in all-optical switches, information storage, and logic circuits of all optical information processing.

DOI: 10.1088/1674-1056/24/8/084211

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