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Reverse saturable absorption and optical limiting in indanthrone dyes

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Abstract

Fluence dependence of transmission in three dyes, viz. indanthrone, dichloroindanthrone and violanthrone, is reported at 532 nm as well as at 1.06 µm. These dyes show optical limiting at both these wavelengths for nanosecond pulses. The limiting is due to the combined effect of reverse saturable absorption from the triplet state and thermal defocussing in the dye solutions.

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Authors and Affiliations

  1. Laser Programme, Centre for Advanced Technology, 452013, Indore, India

    Rama Chari, S. R. Mishra, H. S. Rawat & S. M. Oak

Authors
  1. Rama Chari
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  2. S. R. Mishra
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  3. H. S. Rawat
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  4. S. M. Oak
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Chari, R., Mishra, S.R., Rawat, H.S. et al. Reverse saturable absorption and optical limiting in indanthrone dyes. Appl. Phys. B 62, 293–297 (1996). https://doi.org/10.1007/BF01080958

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