Nonlinear behavior of laser-induced damage in KDP and DKDP under multi-wavelength irradiation

P. DeMange, R. A. Negres, H. B. Radousky, S. G. Demos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The damage performance of potassium dihydrogen phosphate (KDP, and its deuterated analog DKDP) crystals under multi-wavelength, simultaneous exposure to the harmonics of a nanosecond Nd:YAG laser system is of particular interest because it approximates the conditions taking place during frequency conversion. In this work, damage initiation under simultaneous exposure to two pulses at different wavelengths is investigated as a function of faience in both KDP and DKDP. We have developed a novel damage testing instrumentation which allows us to measure the damage pinpoint density as a function of laser parameters, including wavelength, fluence, and pulse-length. This new method enables us to carefully quantify the damage effects of both, single-wavelength and dual-wavelength pulsed irradiation. In the latter case, we measure the laser-induced damage behavior when the fluence at one wavelength is varied while the fluence of the second wavelength is kept constant. Our results suggest that the behavior of laser-induced damage initiation under simultaneous multi-wavelength irradiation is complex and crystal dependent.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsP.E. Powers
Pages114-119
Number of pages6
Volume5710
DOIs
StatePublished - 2005
Externally publishedYes
EventNonlinear Frequency Generation and Conversion: Materials,Devices, and Applications IV - San Jose, CA, United States
Duration: Jan 25 2005Jan 27 2005

Other

OtherNonlinear Frequency Generation and Conversion: Materials,Devices, and Applications IV
CountryUnited States
CitySan Jose, CA
Period1/25/051/27/05

Keywords

  • Laser-induced damage
  • Nonlinear optical materials

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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  • Cite this

    DeMange, P., Negres, R. A., Radousky, H. B., & Demos, S. G. (2005). Nonlinear behavior of laser-induced damage in KDP and DKDP under multi-wavelength irradiation. In P. E. Powers (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5710, pp. 114-119). [28] https://doi.org/10.1117/12.592066