Affordable Access

deepdyve-link
Publisher Website

Origin of thermally induced second harmonic generation in PbO-B2O3 glasses.

Authors
  • Liu, Qiming
  • Du, Jincheng
Type
Published Article
Journal
Optics Letters
Publisher
The Optical Society
Publication Date
Mar 01, 2012
Volume
37
Issue
5
Pages
860–862
Identifiers
DOI: 10.1364/OL.37.000860
PMID: 22378418
Source
Medline
License
Unknown

Abstract

Optical second harmonic generation (SHG) with second-order nonlinearity χ((2)) as high as 2.1 pm/V has been achieved in water quenched PbO-B(2)O(3) glasses. No nonlinear depletion layer or microcrystals were observed in these glasses and the mechanism for nonlinearity has been explored in this Letter. Our results show that the possible mechanism for SHG in these glasses can be attributed to their low thermal conductivity that led to a large surface stress gradient, which broke the inversion symmetry of the glasses and subsequently induced the nonlinear effect. These findings suggest that low thermal conductivity induced high stress gradients to lead to large SHG.

Report this publication

Statistics

Seen <100 times