Title :
Nonlinear optical transmission induced by large transient electric field enhancements in photoconductive zinc selenide switches
Author :
Cho, Pak S. ; Cui, Y.F. ; Goldhar, Julius ; Lee, Chi H.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
fDate :
9/1/1994 12:00:00 AM
Abstract :
We report our investigation on photoconductive power switching using polycrystalline zinc selenide with transparent liquid electrolytic electrodes. Nonlinear optical transmission which is due to high internal electric fields of this switch under moderate biases was observed. From the optical transmission measurements, large and fast electric field variations inside the switch were deduced. Electric field compression inside the switch, which can be attributed to the switch geometry and the electro-absorption effect, was responsible for the observed large optical absorption. Our model provided explanations for these observations
Keywords :
II-VI semiconductors; electro-optical devices; electroabsorption; light transmission; nonlinear optics; optical switches; photoconducting devices; power electronics; semiconductor switches; zinc compounds; ZnSe; electric field compression; electro-absorption; internal electric fields; nonlinear optical transmission; optical absorption; photoconductive power switching; polycrystalline zinc selenide; transient electric field; transparent liquid electrolytic electrodes; Absorption; Electrodes; High speed optical techniques; Nonlinear optics; Optical pulse generation; Optical switches; Photoconductivity; Power semiconductor switches; Semiconductor lasers; Zinc compounds;
Journal_Title :
Electron Devices, IEEE Transactions on
