2ND-HARMONIC GENERATION IN POLED TELLURITE GLASSES

Authors
TANAKA K KASHIMA K HIRAO K SOGA N MITO A NASU H
Citation
K. Tanaka et al., 2ND-HARMONIC GENERATION IN POLED TELLURITE GLASSES, JPN J A P 2, 32(6B), 1993, pp. 843-845
Citations number
14
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
32
Issue
6B
Year of publication
1993
Pages
843 - 845
Database
ISI
SICI code
Abstract
Second harmonic generation has been observed in electrically poled tel lurite glasses with 80TeO2 . 10Li2O . 10 Nb2O5 and 70TeO2 . 15Li2O . 1 5Nb2O5 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 mecha nism generating the second-order nonlinearity in the poled tellurite g lasses, it is proposed that strong local polarization is caused by mig ration of lithium ions and/or periodic orientation of lone pairs of el ectrons in the tellurium ions.