Abstract
We have developed a technique for the temporal characterisation of weak deep-ultraviolet (DUV) ultrashort laser pulses by combining asynchronous optical sampling with difference-frequency mixing. The intensity profile of picosecond DUV pulses, with peak powers as low as 2.5 W, have been measured accurately with a resolution of 50 fs. The method can be extended to complete amplitude and phase characterisation of few femtosecond laser pulses at DUV wavelengths.
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Granados, E., Fuerbach, A., Coutts, D.W. et al. Asynchronous cross-correlation for weak ultrafast deep ultraviolet laser pulses. Appl. Phys. B 97, 759–763 (2009). https://doi.org/10.1007/s00340-009-3634-5
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DOI: https://doi.org/10.1007/s00340-009-3634-5