Quasi-phase-matching of high harmonic generation using counter-propagating pulses
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+1)2, as expected. However, for trains with N...
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| Format: | Article |
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EDP Sciences
2013-03-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20134101013 |
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doaj-cee5ae4c91ab4a748bedfb923a84904e2021-08-02T06:23:57ZengEDP SciencesEPJ Web of Conferences2100-014X2013-03-01410101310.1051/epjconf/20134101013Quasi-phase-matching of high harmonic generation using counter-propagating pulsesO’Keeffe K.Hooker S.M.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+1)2, 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. http://dx.doi.org/10.1051/epjconf/20134101013 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
O’Keeffe K. Hooker S.M. |
| spellingShingle |
O’Keeffe K. Hooker S.M. Quasi-phase-matching of high harmonic generation using counter-propagating pulses EPJ Web of Conferences |
| author_facet |
O’Keeffe K. Hooker S.M. |
| author_sort |
O’Keeffe K. |
| title |
Quasi-phase-matching of high harmonic generation using counter-propagating pulses |
| title_short |
Quasi-phase-matching of high harmonic generation using counter-propagating pulses |
| title_full |
Quasi-phase-matching of high harmonic generation using counter-propagating pulses |
| title_fullStr |
Quasi-phase-matching of high harmonic generation using counter-propagating pulses |
| title_full_unstemmed |
Quasi-phase-matching of high harmonic generation using counter-propagating pulses |
| title_sort |
quasi-phase-matching of high harmonic generation using counter-propagating pulses |
| publisher |
EDP Sciences |
| series |
EPJ Web of Conferences |
| issn |
2100-014X |
| publishDate |
2013-03-01 |
| description |
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+1)2, 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. |
| url |
http://dx.doi.org/10.1051/epjconf/20134101013 |
| work_keys_str_mv |
AT okeeffek quasiphasematchingofhighharmonicgenerationusingcounterpropagatingpulses AT hookersm quasiphasematchingofhighharmonicgenerationusingcounterpropagatingpulses |
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1721240229729271808 |