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- Title
Nonstoichiometry in KTP and Nb: KTP crystals by high-temperature solutions method.
- Authors
Hao, Xiaofei; Jin, Chengguo
- Abstract
Nonstoichiometry could cause many point defects and limit the application of KTP crystal. Nonstoichiometry in KTP and Nb:KTP crystals by high-temperature solution method were studied by laser-ablation inductively coupled plasma mass spectometry (LA-ICP-MS) and X-ray photoelectron spectroscopy (XPS). The formation of high potassium and Ti centers in KTP and Nb:KTP crystals was analyzed. The effect of niobium on nonstoichiometry in Nb:KTP crystal was discussed. The results showed that high potassium, low phosphate, and low oxygen existed in KTP and Nb:KTP crystal samples. Low phosphate and low oxygen in crystal samples resulted from phosphate volatilization, which could be inhibited by the increase of niobium content. Meanwhile, Ti centers in crystal samples were original and formed during crystal growth, and were generated with high potassium simultaneously.
- Subjects
STOICHIOMETRY; POTASSIUM titanyl phosphate; CRYSTAL structure; HIGH temperatures; X-ray photoelectron spectroscopy
- Publication
Journal of Nonlinear Optical Physics & Materials, 2015, Vol 24, Issue 4, p1
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863515500435