Nonlinear UV-laser spectroscopy of the 2 3S−5 3P transition in 3He and 4He

We report the production of stable CW single mode UV radiation around 295 nm at powers exceeding 50 mW, using a passive enhancement cavity for second harmonic generation. With this laser we have investigated the 2 3S−5 3P transition at 294.5 nm in 3He and 4He by intermodulated fluorescence spectrosc...

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Bibliographic Details
Published inOptics communications Vol. 42; no. 4; pp. 247 - 250
Main Authors Bloomfield, L.A., Gerhardt, H., Hansch, T.W., Rand, S.C.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.1982
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Summary:We report the production of stable CW single mode UV radiation around 295 nm at powers exceeding 50 mW, using a passive enhancement cavity for second harmonic generation. With this laser we have investigated the 2 3S−5 3P transition at 294.5 nm in 3He and 4He by intermodulated fluorescence spectroscopy. The measurements of the hyperfine splittings of the 5 3P levels agree with semi-empirical calculations.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(82)90026-8