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Doppler-free two-photon spectroscopy in the vacuum ultraviolet: helium 11S-21S transition

Bergeson, S; Baldwin, Kenneth; Lucatorto, T; McIlrath, T; Cheng, C; Eyler, Edward

Description

We describe techniques for laser spectroscopy in the vacuum-UV (VUV) spectral region that combine high spectral resolution with high absolute accuracy, A nearly transform-limited nanosecond laser source at 120 nm is constructed with difference-frequency mixing. This source is used to perform the first, to our knowledge, Doppler-free VUV measurement. We measure the inherently narrow I1S-21S two-photon transition in atomic helium with a spectral resolution of 7 parts in 108 (180 MHz), the...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
URI: http://hdl.handle.net/1885/90174
Source: Journal of the Optical Society of America B

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