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Optical nonlinearity of organic dyes as studied by Z-scan and transient grating techniques

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Abstract

The excited state absorption cross-section of 5,5′-dichloro-11-diphenyl-amino-3,3′-diethyl-10, 12-ethylinethiatricarbocyanine perchlorate (IR140) have been measured by using a single beam transmission technique. Z-scan experiments have been used to find out a few nonlinear parameters. The excited state relaxation times have also been measured by using laser induced transient grating (LITG) technique.

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Authors and Affiliations

  1. Department of Physics, Indian Institute of Technology-Madras, 600 036, Chennai, India

    Umakanta Tripathy, R. Justin Rajesh, Prem B. Bisht & A. Subrahamanyam

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  1. Umakanta Tripathy
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  2. R. Justin Rajesh
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  3. Prem B. Bisht
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  4. A. Subrahamanyam
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Correspondence to Prem B. Bisht.

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Tripathy, U., Rajesh, R.J., Bisht, P.B. et al. Optical nonlinearity of organic dyes as studied by Z-scan and transient grating techniques. J Chem Sci 114, 557–564 (2002). https://doi.org/10.1007/BF02708850

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