A
laser in which the state of the device introducing important losses in the resonant cavity
and preventing
lasing operation is suddenly switched to a state where the device introduces very low losses.
This increases rapidly the Quality factor of the cavity, allowing the build-up of
a short and very intense
laser pulse. Typical pulse durations are in the ns range. The Q-switching may be active
(a rotating mirror or electro-optic device) or passive (a saturable
absorber).
Source:
PAC, 1996, 68, 2223
(Glossary of terms used in photochemistry (IUPAC Recommendations 1996))
on page 2266
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
