Bulk defect formations in KH2PO4 crystals investigated using fluorescence microscopy

S. G. Demos, M. Staggs, H. B. Radousky

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


Defect formations located in the bulk of KH2PO4 crystals are studied using a specially designed microscopic fluorescence imaging system. The concentration of the observed defect clusters varies depending on the crystal-growth method, the growth sector of the crystal, and the speed of growth. The experimental procedure involves acquisition of high-resolution fluorescence images of bulk defect cluster formations obtained under cw, 488-nm photoexcitation. Annihilation and/or passivation of these defects is observed under exposure of the crystal to high-power, 355-nm laser irradiation. This work suggests that native defects can influence the optical performance and characteristics of potassium dihydrogen phosphate.

Original languageEnglish (US)
Article number224102
Pages (from-to)2241021-2241026
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number22
StatePublished - Jun 2003
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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