Generation of 100-fs light pulses down to 170 nm by sum-frequency mixing in lithium tetraborate

V. Petrov, F. Rotermund, F. Noack, R. Komatsu, T. Sugawara, Satoshi Uda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Lithium tetraborate Li2B4O7 (LB4) has proved to be very promising for the generation of the fourth and fifth harmonics of Nd:YAG lasers. The birefringence of LB4 is higher than that of LBO. LB4 is negative uniaxial and belongs to the 4 mm point group which means that its effective nonlinearity is maximized under the conditions of 90° phase-matching. The clear transmittance spans from 170 nm to 3300 nm. We demonstrate sum-frequency generation of tunable VUV femtosecond pulses with LB4 from 185 nm down to 170 nm (7.3 eV), the lower limit being set by the available fourth harmonic tunability. A comparison with an LBO reference sample reveals that LB4 has a superior performance in the VUV spectral region below 180 nm.

Original languageEnglish
Title of host publicationCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages409-410
Number of pages2
Volume2
ISBN (Electronic)0780356616, 9780780356610
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes
Event1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999 - Seoul, Korea, Republic of
Duration: 1999 Aug 301999 Sep 3

Other

Other1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
CountryKorea, Republic of
CitySeoul
Period99/8/3099/9/3

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Physics and Astronomy(all)

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