Light-Induced Modulation of Broad-Band Optical Absorption in CdS
- 15 March 1970
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 41 (4), 1689-1693
- https://doi.org/10.1063/1.1659092
Abstract
The optical transmission of CdS single crystals has been changed using a laser. With ac techniques, these changes have been observed from 530 to 2000 nm in the transmission spectrum, and include both increased and decreased transmission. Comparison between the intensity dependence and the temperature dependence of photoconductivity and of change of transmission suggest a mechanism. The effect is a change of optical absorption produced primarily by the change in hole population of imperfection levels in the band gap. Changes in transmission due to population changes of approximately 1012 cm−3 have been observed.Keywords
This publication has 2 references indexed in Scilit:
- Fine Structure of Infrared Absorption Spectra of an Electroluminescent ZnS(CuCl) Crystal during EmissionPhysical Review B, 1967
- The excited states of theF center investigated by means of modulated optical absorptionIl Nuovo Cimento B (1971-1996), 1966