This article is cited in 16 papers

Nonlinear optical phenomena

Measurement of the two-photon absorption cross sections of dicyanomethylene-pyrans by the z-scan method

S. S. Chunosova^a, V. A. Svetlichnyi^b, Yu. P. Meshalkin<sup>cd

a</sup> Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
^b V.D. Kuznetsov Siberian Physicotechnical Institute at Tomsk State University
^c Novosibirsk State Technical University
^d Research Institute of Physiology, Russian Academy of Medical Sciences, Siberian Branch, Novosibirsk

Abstract: The two-photon absorption cross sections of three dicyanomethylene-pyrane DCM dyes excited by a femtosecond pulsed from a Ti:sapphire laser are measured by the open-aperture z-scan method. The experimental transmission curves are approximated by the corresponding model curves to give the two-photon absorption cross sections equal to 5.1 $\times10^3$ GM, 5.7 $\times10^3$ GM, and 8.4 $\times10^3$ GM for DCM, DCM-17, and DCM-doa, respectively (1 GM $=10^{-50}$ cm$^4$s phot$^{-1}$ mol$^{-1}$).

PACS: 42.65.An, 33.80.-b

Received: 18.01.2005

 English version: Quantum Electronics, 2005, 35:5, 415–418

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