[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/JOSK.2002.6.2.033

Peak-to-zero modulation of optical absorption via electrically controllable quantum interference

Lee, Byoung-Ho (School of Electrical Engineering, Seoul National University)
Kim, Kyoung-Youm (School of Electrical Engineering, Seoul National University)

Publication Information

Journal of the Optical Society of Korea / v.6, no.2, 2002 , pp. 33-36 More about this Journal

Abstract

We propose a modulation scheme of optical absorption in a coupled asymmetric quantum well (QW) structure via electrically controllable quantum interference. It is based on the parallel-perpendicular energy coupling effect. We show that by applying an external electric Held in the parallel direction (to the QW layers), we can obtain a maximum (peak-type) absorption at a specific wavelength where absorption cancellation would occur due to electrically induced transparency without such an external Held .

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