Abstract
A novel technique to measure changes in optical transmission of better than 10−3 with time resolution of better than 10 ns is discussed. The photocurrent from two photodiodes is subtracted with a balanced detection circuit to eliminate the common signal; carrier-induced change in absorption for a semiconductor single quantum well produces a large differential signal.
© 1994 Optical Society of America
Full Article | PDF ArticleMore Like This
Jacek Borysow, Hossein Golnabi, Roger H. Taylor, and J. W. Keto
Appl. Opt. 31(15) 2814-2819 (1992)
Yasuyuki Ozeki, Yu Miyawaki, and Yoshitaka Taguchi
J. Opt. Soc. Am. B 37(11) 3288-3295 (2020)
A. Lacaita, P. A. Francese, F. Zappa, and S. Cova
Appl. Opt. 33(30) 6902-6918 (1994)