A strong-field driver in the single-cycle regime based on self-compression in a kagome fibre

作者：Balciunas T^*; Fourcade Dutin C; Fan G; Witting T; Voronin A A; Zheltikov A M; Gerome F; Paulus G G; Baltuska A; Benabid F

来源：Nature Communications, 2015, 6(1): 6117.

DOI：10.1038/ncomms7117

Over the past decade intense laser fields with a single-cycle duration and even shorter, subcycle multicolour field transients have been generated and applied to drive attosecond phenomena in strong-field physics. Because of their extensive bandwidth, single-cycle fields cannot be emitted or amplified by laser sources directly and, as a rule, are produced by external pulse compression-a combination of nonlinear optical spectral broadening followed up by dispersion compensation. Here we demonstrate a simple robust driver for high-field applications based on this Kagome fibre approach that ensures pulse self-compression down to the ultimate single-cycle limit and provides phase-controlled pulses with up to a 100 mJ energy level, depending on the filling gas, pressure and the waveguide length.

• 出版日期2015-1