Application of the Z-scan technique to a saturable photorefractive medium with the overlapped ground and excited state absorption

Authors
Kir'yanov, AV Barmenkov, YO Starodumov, AN Leppanen, VP Vanhanen, J Jaaskelainen, T
Citation
Av. Kir'Yanov et al., Application of the Z-scan technique to a saturable photorefractive medium with the overlapped ground and excited state absorption, OPT COMMUN, 177(1-6), 2000, pp. 417-423
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS COMMUNICATIONS
ISSN journal
00304018 → ACNP
Volume
177
Issue
1-6
Year of publication
2000
Pages
417 - 423
Database
ISI
SICI code
0030-4018(20000415)177:1-6<417:AOTZTT>2.0.ZU;2-2
Abstract
Z-scan technique is applied to a saturable medium described by a generalize d three-level scheme of photoexcitation in the condition of overlapping spe ctra of the ground and excited states. Correctness of the Z-scan data inter pretation is analyzed in the framework of the model. The approach is applie d for measuring the refractive indices Delta n(0) and n(2) in polymer films containing bacteriorhodopsin. (C) 2000 Published by Elsevier Science B.V. All rights reserved.