Photoinduced Damage in Gd1-XYXCa4O(BO3)3 Crystals

, , , , , and

Copyright (c) 2000 The Japan Society of Applied Physics
, , Citation Hiroshi Nakao et al 2000 Jpn. J. Appl. Phys. 39 L463 DOI 10.1143/JJAP.39.L463

1347-4065/39/5B/L463

Abstract

Gd1-XYXCa4O(BO3)3 (GdYCOB) crystal has considerable potential as a noncritically phase-matched third-harmonic generator of Nd:YAG lasers. However, during high-power third-harmonic generation (THG), THG performance was limited by photoinduced damages. We observed two kinds of photoinduced damages. One was a "gray-track" that was formed during high-peak-power THG. Another was photorefractive damage that was induced by high-repetitive THG. Electron paramagnetic resonance (EPR) measurement suggested that the gray-tracking was related to Y2+ ions that converted from Y3+ by exposure to UV light.

Export citation and abstract BibTeX RIS

10.1143/JJAP.39.L463