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Two-photon-absorption of frequency converter crystals at 248 nm

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Abstract

The two-photon-absorption coefficient of KDP, BBO, LTB, and CLBO crystals has been determined from the measurement of the intensity dependent transmission through long samples. The intensity of the sub-picosecond KrF excimer laser pulses on the samples was varied from 0.2–80 GW/cm2. The linear absorption of the samples was determined by using a low intensity, long pulse KrF laser. The first-principle simulations to the experimental data show a TPA value of 0.48 cm/GW for KDP, 0.5 cm/GW (o-ray) and 0.34 cm/GW (e-ray) in BBO, 0.22 cm/GW in LTB and 0.53 cm/GW in CLBO.

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Authors and Affiliations

  1. Dept. of Optics and Quantum Electronics, University of Szeged, 406, Szeged, 6701, Hungary

    M. Divall & K. Osvay

  2. Central Laser Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OXON OX11 0QX, UK

    M. Divall & E.J. Divall

  3. HAS Research Group on Laser Physics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary

    G. Kurdi

  4. Dept. of Mathematics and Physics, Kecskemét College, 91, Kecskemét, 6000, Hungary

    J. Klebniczki

  5. Department Experimental Physics, University of Szeged, Dóm tér 9, Szeged, 6720, Hungary

    J. Bohus

  6. Research Institute for Solid State Physics and Optics, H.A.S., 49, Budapest, 1525, Hungary

    Á. Péter & K. Polgár

Authors
  1. M. Divall
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  2. K. Osvay
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  3. G. Kurdi
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  4. E.J. Divall
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  5. J. Klebniczki
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  6. J. Bohus
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  7. Á. Péter
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  8. K. Polgár
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Corresponding author

Correspondence to K. Osvay.

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PACS

78.20.Ci; 42.65.Ky; 42.65.Yj

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Divall, M., Osvay, K., Kurdi, G. et al. Two-photon-absorption of frequency converter crystals at 248 nm. Appl. Phys. B 81, 1123–1126 (2005). https://doi.org/10.1007/s00340-005-1954-7

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  • DOI: https://doi.org/10.1007/s00340-005-1954-7

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