High harmonic generation in VUV via passive enhancement of near infrared femtosecond pulses

Kentaro Wakui; Kazuhiro Hayasaka; Tetsuya Ido

doi:10.1117/12.894949

12 September 2011 High harmonic generation in VUV via passive enhancement of near infrared femtosecond pulses

Kentaro Wakui, Kazuhiro Hayasaka, Tetsuya Ido

Proceedings Volume 8132, Time and Frequency Metrology III; 813204 (2011) https://doi.org/10.1117/12.894949
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

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.

Citation Download Citation

Kentaro Wakui, Kazuhiro Hayasaka, and Tetsuya Ido "High harmonic generation in VUV via passive enhancement of near infrared femtosecond pulses", Proc. SPIE 8132, Time and Frequency Metrology III, 813204 (12 September 2011); https://doi.org/10.1117/12.894949

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