List of Division publications with links

2012-02-17 08:48 - Extreme supercontinuum generation to the deep UV

S. P. Stark, J. C. Travers, and P. St. J. Russell, Optics Letters Vol. 37, Iss. 5, pp. 770–772 (2012)

We report the formation of an ultrabroad supercontinuum down to 280 nm in the deep UV by pumping sharplytapered (5-30 mm taper lengths) solid-core photonic crystal fibers with 130 fs, 2 nJ pulses at 800 nm. The tapermoves the point of soliton fission to a position where the core is narrower, a process that requires normal dispersionat the input face of the fiber. We find that the generation of deep-UV radiation is limited by strong two-photonabsorption in the silica.