Vacuum ultraviolet application of Li2B4O7 crystals: Generation of 100 fs pulses down to 170 nm

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

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


We investigate and characterize the newly grown crystal Li2B4O7 which is transparent down to 160 nm far nonlinear optical conversion into the vacuum ultraviolet using sum frequency mixing with femtosecond pulses. This material exhibits excellent properties below 180 nm and makes possible the generation of wavelengths down to 170 nm with an all solid state laser system. The most important advantage of Li2B4O7 in this spectral range turns out to be the possibility of utilizing noncritical phase matching with maximized effective nonlinearity. We demonstrate generation of nearly transform limited 100 fs pulses between 170 and 185 nm with conversion efficiency of 4%. Their peak powers range from 200 kW at 170 nm to >2 MW at 185 nm.

Original languageEnglish
Pages (from-to)5887-5892
Number of pages6
JournalJournal of Applied Physics
Issue number11
Publication statusPublished - 1998 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Vacuum ultraviolet application of Li<sub>2</sub>B<sub>4</sub>O<sub>7</sub> crystals: Generation of 100 fs pulses down to 170 nm'. Together they form a unique fingerprint.

Cite this