Author： Andiel U. Tsakiris G. D. Cormier E. Witte K.
Publisher： Edp Sciences
E-ISSN： 1286-4854|47|1|42-48
ISSN： 0295-5075
Source： EPL (EUROPHYSICS LETTERS), Vol.47, Iss.1, 2010-03, pp. : 42-48
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Abstract
Two-colour phase control of gas harmonic generation has beendemonstrated using a 200-fs Ti:sapphire laser and its second harmonic.In the detection range covering the 7th to the 20th harmonic order, amodulation of up to 27% in the harmonic emission signal was observedby precisely varying the relative phase between the two colours.Simulations based on the single-particle response predict enhancementof the high harmonic efficiency by orders of magnitude for a givenrelative phase between the two colours.
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