Abstract
Three kinds of KH2PO4 raw material are used to grow deuterated potassium
dihydrogen phosphate (DKDP) crystals by traditional and rapid growth methods,
respectively. The growth habit dependence on the purity of raw material is described
and analyzed. The optical properties including transmission spectra and
laser-induced damage threshold of these crystals have been measured. It is found
that the growth method affects the optical properties of crystal more obviously than
the raw material with the mass content of main metal ions below 1 ppm. Moreover, the
morphology of the core in the observed damage sites indicates that an explosion
process probably occurs during laser-induced breakdown.
© 2014 Chinese Optics Letters
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