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Exploitation of the Gaussian beam for the investigation of the refractive index changes induced in a medium by an intensive light wave

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Czechoslovak Journal of Physics B Aims and scope

Conclusion

It has been shown that the experimental method consisting in the change of parameters of the Gaussian beam by the lens that the beam creates in the layer passing through it is simple and suitable for use. The experimental results obtained through this method by studying the refractive index thermal changes that took place when an He-Ne laser beam was absorbed in a layer are in good agreement with the results the theory of stationary thermal defocusation affords. Comparing the results obtained with the solutions of the organic dye brilliant green in different solvents (C2H5OH, C6H5NO2, C3H8O3) the constant dn/dϑ for glycerol has been determined. The method enables studying the physical properties of media which are connected with different mechanisms of the change of the refractive index by an intensive light beam passing through the medium.

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Authors and Affiliations

  1. Institute of Physics and Biophysics, J. A. Komenský University, Mlynská dolina F 2, 842 15, Bratislava, Czechoslovakia

    D. Senderáková

  2. Department of Experimental Physics, Faculty of Mathematics and Physics, J. A. Komenský University, Mlynská dolina F 2, 842 15, Bratislava, Czechoslovakia

    P. Vojtek & J. Kufčáková

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  1. D. Senderáková
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  2. P. Vojtek
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  3. J. Kufčáková
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Senderáková, D., Vojtek, P. & Kufčáková, J. Exploitation of the Gaussian beam for the investigation of the refractive index changes induced in a medium by an intensive light wave. Czech J Phys 34, 1216–1226 (1984). https://doi.org/10.1007/BF01590068

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  • DOI: https://doi.org/10.1007/BF01590068

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