Applied Physics B

, Volume 81, Issue 8, pp 1123–1126 | Cite as

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

  • M. Divall
  • K. OsvayEmail author
  • G. Kurdi
  • E.J. Divall
  • J. Klebniczki
  • J. Bohus
  • Á. Péter
  • K. Polgár


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.


Beam Size Input Pulse Linear Absorption Input Pulse Duration Longe Crystal 
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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • M. Divall
    • 1
    • 2
  • K. Osvay
    • 1
    Email author
  • G. Kurdi
    • 3
  • E.J. Divall
    • 2
  • J. Klebniczki
    • 4
  • J. Bohus
    • 5
  • Á. Péter
    • 6
  • K. Polgár
    • 6
  1. 1.Dept. of Optics and Quantum ElectronicsUniversity of SzegedSzegedHungary
  2. 2.Central Laser FacilityRutherford Appleton LaboratoryChiltonUK
  3. 3.HAS Research Group on Laser PhysicsUniversity of SzegedSzegedHungary
  4. 4.Dept. of Mathematics and PhysicsKecskemét CollegeKecskemétHungary
  5. 5.Department Experimental PhysicsUniversity of SzegedSzegedHungary
  6. 6.Research Institute for Solid State Physics and OpticsH.A.S.BudapestHungary

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