TITLE

Phase-matched high harmonics in a high density plasma by intensity-dependent phase

AUTHOR(S)
Balcou, Ph.; Haroutunian, R.; Sebban, S.; Grillon, G.; Kazamias, S.; Che´riaux, G.; Mullot, G.; Dorrer, Ch.; Le Blanc, C.; Hulin, D.
PUB. DATE
July 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 525 Issue 1, p319
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the experimental- demonstration of phase-matched generation of high harmonics of orders 33 to 45 over 2 mm, in a gas cell filled with 30 torr of neon. Increasing the medium length from 1 to 4 mm is shown to enhance this specific group of harmonics by a factor of 50. To explain these results, we recall how phase-matching conditions are generalized in strong fields. By a phase-matching map formalism, we show how the spatial gradient of the intensity-dependent phase allows one to satisfy those conditions over millimeters. © 2000 American Institute of Physics.
ACCESSION #
6028355

 

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