NDLI: Modulation of optical absorption by controlling the sign of quantum interference via parallel-perpendicular kinetic energy coupling effects

Content Provider	IEEE Xplore Digital Library
Author	Kyoung-Youm Kim Byoungho Lee
Copyright Year	2000
Description	Author affiliation: Sch. of Electr. Eng., Seoul Nat. Univ., South Korea (Kyoung-Youm Kim; Byoungho Lee)
Abstract	Summary form only given. Quantum interferences (especially destructive interferences) have been a subject of active study over the last decade. Some of examples using these interferences include electromagnetically induced transparency (EIT). Lasers without inversion (LWI), and highly efficient schemes for nonlinear optics. In a practical point of view, the implementation of such interferences in semiconductor devices is very interesting since we cannot control critical parameters in atomic systems. In this report, we suggest a structure in which we can change the phase difference between two intersubband transition matrix elements from 0/spl deg/ to 180/spl deg/ by the external perturbation or variables. We use the interferences between \|0>-\|2> and \|0>-\|3> transitions, where \|2> and \|3> states are broadened by tunneling into the same energy continuum through a thin potential barrier. By controlling the parallel kinetic energy of electrons, we can change the phase difference between them parallel-perpendicular kinetic energy coupling effects which modify the effective potential profiles of the structure. This means we can modulate optical absorption by controlling the sign of quantum interference via the parallel kinetic energy of electrons.
File Size	71707
File Format	PDF
ISBN	0780363183
DOI	10.1109/IQEC.2000.908103
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-10
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical modulation Optical control Absorption Interference Kinetic energy Optical coupling Nonlinear optics Optical variables control Electric variables control Electrons
Content Type	Text
Resource Type	Article

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