2ND-HARMONIC GENERATION IN POLED TELLURITE GLASSES

被引：46
|
作者：
TANAKA, K
KASHIMA, K
HIRAO, K
SOGA, N
MITO, A
NASU, H
机构：
[1] NATL RES LAB METROL, TSUKUBA 905, JAPAN
[2] MIE UNIV, FAC ENGN, DEPT CHEM MAT, TSU, MIE 514, JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1993年 / 32卷 / 6B期
关键词：
2ND HARMONIC GENERATION; TELLURITE GLASS; ELECTRICAL POLING; LITHIUM ION MIGRATION; LONE PAIR OF ELECTRONS;
D O I：
10.1143/JJAP.32.L843
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Second harmonic generation has been observed in electrically poled tellurite glasses with 80TeO2 . 10Li2O . 10 Nb2O5 and 70TeO2 . 15Li2O . 15Nb2O5 compositions. The poling was carried out at 200 to 300-degrees-C for 30 min under applied dc field of 4 to 5 kV. To explain the mechanism generating the second-order nonlinearity in the poled tellurite glasses, it is proposed that strong local polarization is caused by migration of lithium ions and/or periodic orientation of lone pairs of electrons in the tellurium ions.
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页码：L843 / L845
页数：3
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