The University of Southampton
University of Southampton Institutional Repository

Second harmonic generation in thermally-poled inorganic glasses

Takebe, H., Kazansky, P.G., Russell, P.St.J. and Morinaga, K. (1996) Second harmonic generation in thermally-poled inorganic glasses At Third International Conference on Nonlinear Optics, United States.

Record type: Conference or Workshop Item (Paper)

Abstract

Inorganic glasses with inversion symmetry naturally have not been possessing the second order nonlinearities (SONs). However, permanent SONs with 1 pm/V (~0.2 of the value chi22^(2) in LiNbO3 have been observed in commercial fused-quartz glasses. For a typical poling condition, samples with 1 mm thick are heated to 280°C with an applied voltage of 4 kV for 15 min and then cooling till room temperature with the field applied. After this poling procedure, the SON is observed only near the anodic surface. This result leads to the interest of the possibility of parametric frequency converters and linear electrooptic modulators monolithically integrated into optical fibers or planar glass waveguides. A better understanding of the mechanism, which is not fully understood, may help improve the value of SON in poled glasses and discover novel SON inorganic glass materials. We have systematically studied the effects of poling conditions, especially poling dc voltage and time on SHG in thermally-poled fused quartz and discovered that the SH signal is proportional to the square of the applied voltage and that the speed of the poling process increases with the applied voltage. Effects of impurity concentrations such as oxygen deficient centre (ODC), Na, and OH in fused quartz glasses were also studied. A correlation of the SH signal with the ODC concentration, which was controlled by annealing temperatures (900 - 1100°C) in air, was observed. The mechanisms and materials conditions to create permanent SONs in various oxide glasses, e.g., fused quartz, sol-gel derived silica, tellurite glasses, are discussed in the light of these new results.

Full text not available from this repository.

More information

Published date: December 1996
Venue - Dates: Third International Conference on Nonlinear Optics, United States, 1996-12-01

Identifiers

Local EPrints ID: 76865
URI: http://eprints.soton.ac.uk/id/eprint/76865
PURE UUID: 642a74ea-2a80-4c5c-a53e-78809a9fe4dd

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:36

Export record

Contributors

Author: H. Takebe
Author: P.G. Kazansky
Author: P.St.J. Russell
Author: K. Morinaga

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×