Share Email Print
cover

Proceedings Paper

Characterization of thermo-optic nonlinearities in glass filters using the Z-scan technique
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

For nonlinear optical materials in which the excitation diffuses significantly during the time scale of measurement the usual analysis of a Z-scan experiment must be modified. We develop a simple first order theory based on a quadratic rather than Gaussian spatial modulation of the index of refraction. This leads to asymmetric Z-scan curves. We apply this theory to the study of the thermal-optic effect in a simple neutral density filter. A significant spatial phase chirp can be induced in these filters at modest intensities. The observed transmission curves agree well with the quadratic theory.

Paper Details

Date Published: 24 July 2002
PDF: 9 pages
Proc. SPIE 4751, ICONO 2001: Nonlinear Optical Phenomena and Nonlinear Dynamics of Optical Systems, (24 July 2002);
Show Author Affiliations
Alexander N. Korolevich, National Academy of Sciences of Belarus and Univ. do Minho (Belarus)
Michael Scott Belsley, Univ. do Minho (Portugal)


Published in SPIE Proceedings Vol. 4751:
ICONO 2001: Nonlinear Optical Phenomena and Nonlinear Dynamics of Optical Systems
Konstantin N. Drabovich; Nikolai S. Kazak; Vladimir A. Makarov; Alexander P. Voitovich, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray