Optical and Quantum Electronics

, Volume 16, Issue 2, pp 109–115 | Cite as

Sum frequency beam analysis for the determination of the temporal characteristics of ultrashort light pulses

  • J. Janszky
  • G. Corradi
  • S. A. Arakelian
  • R. N. Gyuzalian
  • S. B. Sogomonian


An extension of the single-shot second harmonic beam method proposed earlier for picosecond pulse duration measurements is presented for the case of two incident pulses of differing frequencies, durations and transverse sizes. The solution of the wave equation for noncollinear sum frequency generation in a nonlinear crystal by two Gaussian, spatially limited ultrashort pulses is given. It is shown that the width (τ 1 2 2 2 )1/2 of the temporal cross-correlation function of the two pulses can be deduced from the spatial energy distribution of the sum frequency beam. The method can be used e.g. in the case of a relatively weak secondary pulse obtained in some nonlinear processes. Preliminary experimental results demonstrating the possibilities offered by the method are presented.


Ultrashort Pulse Nonlinear Crystal Incident Pulse Picosecond Pulse Beam Analysis 
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Copyright information

© Chapman and Hall Ltd. 1984

Authors and Affiliations

  • J. Janszky
    • 1
  • G. Corradi
    • 1
  • S. A. Arakelian
    • 2
  • R. N. Gyuzalian
    • 2
  • S. B. Sogomonian
    • 2
  1. 1.Research Laboratory for Crystal PhysicsHungarian Academy of SciencesBudapestHungary
  2. 2.Institute for Physical Research of the Armenian Academy of SciencesAshtarak-2USSR

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