Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Transient absorption in excimer-exposed silica

Not Accessible

Your library or personal account may give you access

Abstract

The transient absorption produced in high-purity fused silica by exposure to a 193-nm excimer laser is investigated as a function of exposure, dissolved molecular hydrogen content, and hydrogen-related processing. Long-term recovery of transmittance was found to correlate with the dissolved molecular hydrogen concentration, whereas short-term fade was due to geminate recombination of an E′ center with an H radical. The redarkening process was shown to be the result of photolysis of SiH, which regenerates color centers. When the silica was processed in a hydrogen atmosphere at high temperature and subsequently exposed at 193 nm, the glass was found to produce an absorption spike, a fast, recoverable decrease in transmittance. The origin of the spike was linked to the creation of a precursor produced in the thermal reaction of silica with hydrogen. The precursor can be identified by its signal in the Raman spectrum. It is suggested that the precursor has absorption at 193 nm.

© 2000 Optical Society of America

Full Article  |  PDF Article
More Like This
Polarized IR studies of silica glasses exposed to polarized excimer radiation

Charlene M. Smith, Nicholas F. Borrelli, and James E. Tingley
J. Opt. Soc. Am. B 23(12) 2511-2517 (2006)

Influence of sodium impurities on ArF excimer-laser-induced absorption in CaF2 crystals

Norio Komine, Shigeru Sakuma, Masaki Shiozawa, Tsutomu Mizugaki, and Eiji Sato
Appl. Opt. 39(22) 3925-3930 (2000)

Excimer-laser-induced densification in binary silica glasses

N. F. Borrelli, C. M. Smith, and D. C. Allan
Opt. Lett. 24(20) 1401-1403 (1999)

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 Optica member, or as an authorized user of your institution.

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

Figures (10)

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

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

Equations (7)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved