DEPENDENCE OF SECOND-HARMONIC PHASE-MATCHING TEMPERATURE IN LINBO3 CRYSTALS ON MELT COMPOSITION

被引：118

作者：

FAY, H

ALFORD, WJ

DESS, HM

机构：

[1] Union Carbide Corporation, Electronics Division, Speedway Laboratories, Indianapolis

来源：

APPLIED PHYSICS LETTERS | 1968年 / 12卷 / 03期

关键词：

D O I：

10.1063/1.1651911

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The second-harmonic, phase-matching temperature of ''stoichiometric'' LiNbO3 crystals, for fundamental radiation at 1.06 , has been found to vary by as much as 75°C from crystal to crystal and 10°C within an individual crystal. Measurements on crystals grown in a controlled manner from nonstoichiometric melts have shown that the phase-matching temperature, T, is an approximately linear function of melt composition, x, obeying the equation T = 50.5 + 32 × 102 (x - 0.50). Crystals with phase-matching temperatures of as high as 186°C have been grown from melts containing excess lithia. Such a crystal has been operated as a second harmonic generator without damage, whereas a comparable radiation produced by a crystal with a low phase-matching temperature damaged the crystal. A mechanism involving lithium ion vacancies is proposed to explain the results. © 1968 The American Institute of Physics.

引用

页码：89 / +

页数：1

共 10 条

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