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High-brightness high-order harmonic generation by truncated bessel beams in the sub-10-fs regime
M Nisoli1, E Priori, G Sansone
1Istituto Nazionale per la Fisica della Materia, Centro di Elettronica Quantistica e Strumentazione Elettronica-C.N.R., Dipartimento di Fisica, Politecnico, Milano, Italy. mauro.nisoli@fisi.polimi.it
Physical Review Letters
|January 22, 2002
Abstract:
Low-divergence, high-brightness harmonic emission has been generated by using a fundamental beam with a truncated Bessel intensity profile. Such a beam is directly obtained by using the hollow-fiber compression technique, which indeed allows one to optimize both temporal and spatial characteristics of the high-order harmonic generation process. This is particularly important for the applications of radiation, where extreme temporal resolution and high brightness are required.