Microscopic fluorescence imaging of bulk defect clusters in KH2PO4 crystals

S. G. Demos, M. Staggs, M. Yan, H. B. Radousky, J. J. De Yoreo

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


A microscopic fluorescence imaging system is used to detect optically active centers located inside a transparent dielectric crystal. Defect centers in the bulk of KH2PO4 crystals are imaged based on their near-infrared emission following photoexcitation. The spatial resolution of the system is 1 μm in the image plane and 25 μm in depth. The experimental results indicate the presence of a large number of optically active defect clusters in different KH2PO4 crystals, whereas the concentration of these clusters depends on the crystal sector and growth method.

Original languageEnglish (US)
Pages (from-to)268-270
Number of pages3
JournalOptics Letters
Issue number4
StatePublished - Feb 15 1999
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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