Stoichiometric changes to KH 2PO 4 during laser-induced breakdown

R. A. Negres, S. O. Kucheyev, P. Demange, C. W. Carr, S. G. Demos

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

11 Citations (Scopus)

Abstract

The local structure of KH 2PO 4 crystals (so-called KDP) at laser-induced damage sites created by irradiation with ∼ 3-ns, 355-nm laser pulses is studied by a combination of Raman scattering and photoluminescence spectroscopies. We compare spectra from pristine material, surface and bulk laser-induced damage sites, as well as from KPO 3 references. Results show that irradiation with fluences above the laser-induced breakdown threshold leads to stoichiometric changes at surface damage sites but not at bulk damage sites. New spectroscopic features are attributed to dehydration products. For the laser irradiation conditions used in this study, the decomposed near-surface layer absorbs photons at ∼ 3.4 eV (364 nm). These results may help explain the recently reported observation that surface laser damage sites in KDP crystals tend to grow with subsequent exposure to high-power laser pulses, while bulk damage sites do not.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsG.J. Exarhos, A.H. Guenther, N. Kaiser, K.L. Lewis, M.J. Soileau, C.J. Stolz
Pages306-312
Number of pages7
Volume5647
DOIs
StatePublished - 2005
Externally publishedYes
Event36th Annual Boulder Damage Symposium Proceedings: Laser-Induced Damage in Optical Materials: 2004 - Boulder, CO, United States
Duration: Sep 20 2004Sep 22 2004

Other

Other36th Annual Boulder Damage Symposium Proceedings: Laser-Induced Damage in Optical Materials: 2004
CountryUnited States
CityBoulder, CO
Period9/20/049/22/04

Fingerprint

Laser damage
breakdown
damage
Lasers
lasers
Laser pulses
irradiation
Irradiation
Crystals
Photoluminescence spectroscopy
High power lasers
Laser beam effects
Dehydration
laser damage
Raman scattering
pulses
Photons
dehydration
high power lasers
crystals

Keywords

  • Condensed phosphates
  • KDP and DKDP crystals
  • Laser-induced damage
  • Photoluminescence
  • Raman spectroscopy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Negres, R. A., Kucheyev, S. O., Demange, P., Carr, C. W., & Demos, S. G. (2005). Stoichiometric changes to KH 2PO 4 during laser-induced breakdown In G. J. Exarhos, A. H. Guenther, N. Kaiser, K. L. Lewis, M. J. Soileau, & C. J. Stolz (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5647, pp. 306-312). [39] https://doi.org/10.1117/12.584943

Stoichiometric changes to KH 2PO 4 during laser-induced breakdown . / Negres, R. A.; Kucheyev, S. O.; Demange, P.; Carr, C. W.; Demos, S. G.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / G.J. Exarhos; A.H. Guenther; N. Kaiser; K.L. Lewis; M.J. Soileau; C.J. Stolz. Vol. 5647 2005. p. 306-312 39.

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

Negres, RA, Kucheyev, SO, Demange, P, Carr, CW & Demos, SG 2005, Stoichiometric changes to KH 2PO 4 during laser-induced breakdown in GJ Exarhos, AH Guenther, N Kaiser, KL Lewis, MJ Soileau & CJ Stolz (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5647, 39, pp. 306-312, 36th Annual Boulder Damage Symposium Proceedings: Laser-Induced Damage in Optical Materials: 2004, Boulder, CO, United States, 9/20/04. https://doi.org/10.1117/12.584943
Negres RA, Kucheyev SO, Demange P, Carr CW, Demos SG. Stoichiometric changes to KH 2PO 4 during laser-induced breakdown In Exarhos GJ, Guenther AH, Kaiser N, Lewis KL, Soileau MJ, Stolz CJ, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5647. 2005. p. 306-312. 39 https://doi.org/10.1117/12.584943
Negres, R. A. ; Kucheyev, S. O. ; Demange, P. ; Carr, C. W. ; Demos, S. G. / Stoichiometric changes to KH 2PO 4 during laser-induced breakdown Proceedings of SPIE - The International Society for Optical Engineering. editor / G.J. Exarhos ; A.H. Guenther ; N. Kaiser ; K.L. Lewis ; M.J. Soileau ; C.J. Stolz. Vol. 5647 2005. pp. 306-312
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