Generation of sub-30 fs ultraviolet pulses by Raman induced phase modulation in nitrogen

We demonstrate compression of ultrashort light pulses in the ultraviolet (UV) by impulsively excited molecular wave-packets in nitrogen filled in a 25 cm long hollow waveguide of 128 microm diameter. After compression with CaF2 prisms the pulse duration was determined by XFROG to be 23 fs with a tim...

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Published inOptics express Vol. 13; no. 7; pp. 2467 - 2474
Main Authors Noack, F, Steinkellner, O, Tzankov, P, Ritze, H-H, Herrmann, J, Kida, Y
Format Journal Article
LanguageEnglish
Published United States 04.04.2005
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Summary:We demonstrate compression of ultrashort light pulses in the ultraviolet (UV) by impulsively excited molecular wave-packets in nitrogen filled in a 25 cm long hollow waveguide of 128 microm diameter. After compression with CaF2 prisms the pulse duration was determined by XFROG to be 23 fs with a time-bandwidth product of 0.50. The advantages of our technique are high efficiency and the possibility to use it also for pulses at wavelength shorter than 200 nm. The experimental observations are explained by a theoretical model.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OPEX.13.002467