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Spectroscopic derivative in optical study of GaInAs/InP and GaInP/AlGaInP multip le quantum wells

Shao Jun

Spectroscopic derivative in optical study of GaInAs/InP and GaInP/AlGaInP multip le quantum wells

Shao Jun
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  • Received Date:  19 November 2002
  • Accepted Date:  27 January 2003
  • Published Online:  20 October 2003

Spectroscopic derivative in optical study of GaInAs/InP and GaInP/AlGaInP multip le quantum wells

  • 1. Physikalisches Institut,Universitt Stuttgart,D-70550 Stuttgart,Germany;中国科学院上海技术物理研究所红外物理国家重点实验室,上海 200083

Abstract: With a brief discussion of the physical mechanism of spectroscopic derivative, the successful applications are given in optical absorption and reflectivity study of GaxIn1-xAs/InP and GaxIn1-xP/Al GaInP multiple quantum wells . The effects of different orders of the derivative are compared with each other , and the difference is pointed out between this method and the curve-fitting me thod as well as the double modulation method. A conclusion is reached that the m ethod is practical and reliable in the optical study of wide band-gap quantum we lls.

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