Laser-induced damage in DKDP crystals under simultaneous exposure to laser harmonics

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

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

1 Citation (Scopus)

Abstract

While KDP and DKDP crystals remain the only viable solution for frequency conversion in large aperture laser systems in the foreseeable future, our understanding of damage behavior in the presence of multiple colors is very limited. Such conditions exist during normal operation where, for third harmonic generation, 1ω, 2ω and 3ω components are present with different energy ratios as they propagate inside the crystal. The objective of this work is to shed light into the damage behavior of frequency conversion crystals during operational conditions as well as probe the fundamental mechanisms of damage initiation. We have performed a series of experiments to quantify the damage performance of pristine (unconditioned) DKDP material under simultaneous exposure to 2ω and 3ω laser pulses from a 3-ns Nd:YAG laser system as a function of the laser fluences at each frequency. Results show that simultaneous dual wavelength exposure leads to a much larger damage density as compared to the total damage resulting from separate exposure at each wavelength. Furthermore, under such excitation conditions, the damage performance is directly related to and can be predicted from the damage behavior of the crystal at each wavelength separately while the mechanism and type of defects responsible for damage initiation are shown to be the same at both 2ω and 3ω excitation.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsG.J. Exarhos, A.H. Guenther, K.L. Lewis, D. Ristau, M.J. Souleau, C.J. Stolz
Volume5991
DOIs
StatePublished - 2005
Externally publishedYes
Event37th Annual Boulder Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials: 2005 - Boulder, CO, United States
Duration: Sep 19 2005Sep 21 2005

Other

Other37th Annual Boulder Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials: 2005
CountryUnited States
CityBoulder, CO
Period9/19/059/21/05

Fingerprint

Laser damage
damage
harmonics
Crystals
Lasers
Wavelength
crystals
lasers
Harmonic generation
frequency converters
Laser pulses
Color
wavelengths
Defects
excitation
YAG lasers
Experiments
harmonic generations
fluence
apertures

Keywords

  • Kdp and dkdp crystals
  • Laser-induced damage
  • Nonlinear frequency conversion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Negres, R. A., Demange, P., Radousky, H. B., & Demos, S. G. (2005). Laser-induced damage in DKDP crystals under simultaneous exposure to laser harmonics. In G. J. Exarhos, A. H. Guenther, K. L. Lewis, D. Ristau, M. J. Souleau, & C. J. Stolz (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5991). [59911S] https://doi.org/10.1117/12.637666

Laser-induced damage in DKDP crystals under simultaneous exposure to laser harmonics. / Negres, R. A.; Demange, P.; Radousky, H. B.; Demos, S. G.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / G.J. Exarhos; A.H. Guenther; K.L. Lewis; D. Ristau; M.J. Souleau; C.J. Stolz. Vol. 5991 2005. 59911S.

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

Negres, RA, Demange, P, Radousky, HB & Demos, SG 2005, Laser-induced damage in DKDP crystals under simultaneous exposure to laser harmonics. in GJ Exarhos, AH Guenther, KL Lewis, D Ristau, MJ Souleau & CJ Stolz (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5991, 59911S, 37th Annual Boulder Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials: 2005, Boulder, CO, United States, 9/19/05. https://doi.org/10.1117/12.637666
Negres RA, Demange P, Radousky HB, Demos SG. Laser-induced damage in DKDP crystals under simultaneous exposure to laser harmonics. In Exarhos GJ, Guenther AH, Lewis KL, Ristau D, Souleau MJ, Stolz CJ, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5991. 2005. 59911S https://doi.org/10.1117/12.637666
Negres, R. A. ; Demange, P. ; Radousky, H. B. ; Demos, S. G. / Laser-induced damage in DKDP crystals under simultaneous exposure to laser harmonics. Proceedings of SPIE - The International Society for Optical Engineering. editor / G.J. Exarhos ; A.H. Guenther ; K.L. Lewis ; D. Ristau ; M.J. Souleau ; C.J. Stolz. Vol. 5991 2005.
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