Chapter

Narrowing of spectral lines in astrophysical lasers

Vladilen Letokhov and Sveneric Johansson

in Astrophysical Lasers

Published in print December 2008 | ISBN: 9780199548279
Published online May 2009 | e-ISBN: 9780191720512 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199548279.003.0013
 Narrowing of spectral lines in astrophysical lasers

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This chapter presents a qualitative explanation of the emission spectrum of a saturated amplifier when the amplifying spectral line is inhomogeneously broadened owing to the Doppler effect. Topics discussed include the role of geometry in the saturation regime on spectral narrowing and measurement of the arrow spectral line width of astrophysical lasers.

Keywords: amplifier; spectral line; Doppler effect; spectral narrowing

Chapter.  3950 words.  Illustrated.

Subjects: Atomic, Molecular, and Optical Physics

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