Open AccessSpectroscopic derivative in optical study of GaInAs/InP and GaInP/AlGaInP multip le quantum wells
Author(s) -
Jianda Shao
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.2534
Subject(s) - derivative (finance) , quantum well , absorption (acoustics) , optoelectronics , modulation (music) , materials science , reflectivity , absorption spectroscopy , quantum , band gap , optics , physics , quantum mechanics , laser , acoustics , financial economics , economics
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.