This article is cited in 4 papers

Nonlinear optical phenomena

Experimental study of nonlinear absorption in polymethine dye solutions by the z-scan method

V. A. Svetlichnyi

V.D. Kuznetsov Siberian Physicotechnical Institute at Tomsk State University

Abstract: The nonlinear absorption coefficients β and the ratios k of absorption cross sections in the ground and excited states are measured by the open-aperture z-scan method for three polymethine dyes excited by nanosecond 532-nm second-harmonic pulses of a Nd:YAG laser. The values of k measured for the 789, 842, and 823 dyes are 10, 11, and 11, respectively, and correlate with the limiting properties of these dyes.

PACS: 42.70.Jk, 42.65.An

Received: 17.02.2005
Revised: 13.10.2005

 English version: Quantum Electronics, 2006, 36:1, 51–55

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