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

M. Divall, K. Osvay, G. Kurdi, E. J. Divall, J. Klebniczki, J. Bohus, Á Péter, K. Polgár

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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.

Original languageEnglish
Pages (from-to)1123-1126
Number of pages4
JournalApplied Physics B: Lasers and Optics
Issue number8
Publication statusPublished - Dec 1 2005


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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