Author: "Hooker, S. M." / Journal: epj web of conferences - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Hooker, S. M." Journal epj web of conferences

Author: Hooker S. M., O’Keeffe K, and Liu L. Z.
Subjects: Physics, QC1-999
Abstract: A new class of quasi-phase matching high harmonic generation is proposed where the polarization of the driving field is controlled in a waveguide. The first circularly polarized quasi-phase matched source is shown to be possible.
Published: 2013
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Author: Liu, L. Z., primary, O’Keeffe, K, additional, and Hooker, S. M., additional
Published: 2013
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Author: O'Keeffe, K. and Hooker, S. M.
Subjects: *QUASISTATIC processes, *HARMONIC functions, *ATTOSECOND pulses, *PRESSURE drag, *PULSE transformers
Abstract: We investigate quasi-phase-matching over a range of harmonic orders using trains of up to 8 uniformly-spaced counter-propagating pulses. For trains of up to 4 pulses the measured enhancement of the harmonic signal scales with the number of pulses N as (N+l) , as expected. However, for trains with N > 4, no further enhancement of the harmonic signal is observed. The effect is ascribed to changes in the coherence length with the generating medium. The pressure dependence of quasi-phase-matching is also investigated and it is found that additional peaks in the harmonic intensity are consistent with higher-order QPM processes. [ABSTRACT FROM AUTHOR]
Published: 2013
Full Text: View/download PDF

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