Abstract

The level of second-harmonic generation (SHG) in poled low-water fused silica was altered by preannealing in aqueous and dry-nitrogen atmospheres. The effect of water and heat was found to depend on the lot from which the material originated. The effect on the SHG of either a wet or a dry preanneal was sometimes found to be reversible by the opposite preannealing process. For both wet and dry preannealed samples the SHG was found to have both near-surface (<25-μm) and bulk (≈1.5-mm) components. Electron paramagnetic resonance (EPR) data revealed the presence of Si and Ge E′ defect sites and showed that the relative concentrations of these sites was altered by the preannealing processes. EPR and SHG data provided evidence for a second-order bond effect along with a third-order hole-filling effect as sources of the nonlinearity.

© 1995 Optical Society of America

Full Article  |  PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (9)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription