Absorption bistability and nonlinearity in evaporated thin films

Nonlinear optical absorption of evaporated, polycrystalline CdSSe thin films is studied experimentally. A cw Rh6G-dye laser and a frequency doubled alexandrite laser with 5 ns pulse duration are used for excitation. Thermal and electronic nonlinearities are studied under steady state conditions. The...

Full description

Saved in:
Bibliographic Details
Published in:Optics communications 1992-04, Vol.88 (4), p.298-304
Main Authors: Eichler, H.J., Haase, A., Janiak, K., Kummrow, A., Wahi, A., Wappelt, A.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Nonlinear optics
Optics
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nonlinear optical absorption of evaporated, polycrystalline CdSSe thin films is studied experimentally. A cw Rh6G-dye laser and a frequency doubled alexandrite laser with 5 ns pulse duration are used for excitation. Thermal and electronic nonlinearities are studied under steady state conditions. The thermal effect is used to realize absorption bistability and to determine thermal relaxation times. Absorption bleaching is observed with ns excitation and the maximum bleaching coefficient is 1.4 cm/kW. The low quantum efficiency of
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(92)90045-S