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Controllable amplification, absorption, and dispersion in double‐cascade‐type four‐level system of multiple quantum wells
Author(s) -
Yan Wei,
Wang Tao,
Li Xiaoming,
Dong Chuanbo,
Yu Chunchao,
Tang Jian
Publication year - 2013
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201349012
Subject(s) - cascade , dispersion (optics) , coherence (philosophical gambling strategy) , physics , absorption (acoustics) , biexciton , exciton , quantum well , optoelectronics , atomic system , quantum dot , atomic physics , materials science , molecular physics , quantum mechanics , optics , chemistry , laser , chromatography
A double‐cascade‐type four‐level system of semiconductor multiple quantum wells (MQWs) was constructed with biexcitons and excitons. The nonlinear optical properties for amplification, absorption, and dispersion of 2‐weak fields in this scheme are investigated. It shows that the amplification, absorption, and dispersion responses of 2‐weak fields can be achieved by appropriately adjusting the relative phase, the probe detuning, and the two control Rabi frequencies. The investigation is much more practical than its atomic counterpart because of its flexible design and the widely adjustable parameters. It may provide a new possibility in technological applications for the light amplifier and optical switch working on quantum coherence effects in MQW solid‐state systems.