Terahertz-Induced Changes of Optical Spectra in GaAs Quantum Wells

Chin. Phys. Lett.

2004, Vol. 21

Issue (6): 1157-1160 DOI:

Original Articles

Terahertz-Induced Changes of Optical Spectra in GaAs Quantum Wells

MI Xian-Wu;CAO Jun-Cheng

State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050

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MI Xian-Wu, CAO Jun-Cheng 2004 Chin. Phys. Lett. 21 1157-1160

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Abstract We have theoretically investigated optical absorption spectra in GaAs quantum well (QW) driven by both a strong terahertz (THz) field and a near-infrared field within the theory of density matrix. In presence of a strong THz field, the optical transitions in the QW subbands are altered by the THz field. The alteration has a direct impact on the optical absorption and results in the Autler-Townes splitting and the sidebands generation, which is in agreement with the experiments.

Keywords: 78.67.De 42.65.-k 73.21.Fg

Published: 01 June 2004

PACS:	78.67.De	(Quantum wells)
	42.65.-k	(Nonlinear optics)
	73.21.Fg	(Quantum wells)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I6/01157

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