RAMAN-SCATTERING OF PROTON EXCHANGED LINBO3 WAVE-GUIDES

被引：24

作者：

SAVATINOVA, I ^{[1
]}

TONCHEV, S ^{[1
]}

POPOV, E ^{[1
]}

LIAROKAPIS, E ^{[1
]}

RAPTIS, C ^{[1
]}

机构：

[1] NATL TECH UNIV ATHENS,DEPT PHYS,GR-15773 ZOGRAFOS,GREECE

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1992年 / 25卷 / 01期

关键词：

D O I：

10.1088/0022-3727/25/1/015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Proton exchanged LiNbO3 waveguides are studied using Raman spectroscopy. Depending on the waveguide mode, the spectra resemble those of pure LiNbO3 at high temperatures. A characteristic peak appears at 69 cm-1 which is probably due to second-order Raman scattering but strongly associated with the presence of protons. It is proposed that the change in the Raman spectra is due to the coexistence of the ferroelectric and paraelectric phases of LiNbO3 at room temperature, induced by the proton exchange deformations on the lattice.

引用

页码：106 / 112

页数：7

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