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Proceedings Paper

High harmonic generation in VUV via passive enhancement of near infrared femtosecond pulses
Author(s): Kentaro Wakui; Kazuhiro Hayasaka; Tetsuya Ido
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Paper Abstract

We generate a VUV frequency comb centered at 159 nm as the 5th harmonic of Ti:S femto-second pulses by a passive enhancement using an external cavity. Average power up to 1.5 uW is measured by a solar-blind phototube. Stable generation about 10 minutes is obtained by active locking of the Ti:S frequencies to the enhancement cavity. Frequency tunability of our Ti:S comb teeth is also verified, which enables us to continuously sweep its frequency with more than twice a free spectral range. Those features reported here are indispensable to precision spectroscopy of unexplored atomic transitions in the VUV region.

Paper Details

Date Published: 12 September 2011
PDF: 6 pages
Proc. SPIE 8132, Time and Frequency Metrology III, 813204 (12 September 2011); doi: 10.1117/12.894949
Show Author Affiliations
Kentaro Wakui, National Institute of Information and Communications Technology (Japan)
Kazuhiro Hayasaka, National Institute of Information and Communications Technology (Japan)
Tetsuya Ido, National Institute of Information and Communications Technology (Japan)
Japan Science and Technology Agency (Japan)


Published in SPIE Proceedings Vol. 8132:
Time and Frequency Metrology III
Tetsuya Ido; Thomas R. Schibli, Editor(s)

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