Abstract

We demonstrate generation and measurement of intense deep-ultraviolet light pulses with a duration of 2.8fs (FWHM of the intensity envelope) and a wavelength distribution between 230 and 290nm. They emerge via direct frequency upconversion of sub-4fs laser pulses of a carrier wavelength of 750nm focused into an Ne-filled, quasi-static gas cell. Dispersion-free, third-order autocorrelation measurements provide access to their temporal intensity profile.

© 2010 Optical Society of America

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