Quasi-phase-matching of high harmonic generation using counter-propagation 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...
| Үндсэн зохиолчид: | , |
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| Формат: | Journal article |
| Хэл сонгох: | English |
| Хэвлэсэн: |
2013
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| _version_ | 1826272390859980800 |
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| author | O' Keeffe, K Hooker, S |
| author_facet | O' Keeffe, K Hooker, S |
| author_sort | O' Keeffe, K |
| collection | OXFORD |
| 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. © Owned by the authors, published by EDP Sciences, 2013. |
| first_indexed | 2024-03-06T22:11:49Z |
| format | Journal article |
| id | oxford-uuid:5211d676-bff0-4515-8fdb-3c6bcf1a9c94 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:11:49Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:5211d676-bff0-4515-8fdb-3c6bcf1a9c942022-03-26T16:23:22ZQuasi-phase-matching of high harmonic generation using counter-propagation pulsesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5211d676-bff0-4515-8fdb-3c6bcf1a9c94EnglishSymplectic Elements at Oxford2013O' Keeffe, KHooker, SWe 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. © Owned by the authors, published by EDP Sciences, 2013. |
| spellingShingle | O' Keeffe, K Hooker, S Quasi-phase-matching of high harmonic generation using counter-propagation pulses |
| title | Quasi-phase-matching of high harmonic generation using counter-propagation pulses |
| title_full | Quasi-phase-matching of high harmonic generation using counter-propagation pulses |
| title_fullStr | Quasi-phase-matching of high harmonic generation using counter-propagation pulses |
| title_full_unstemmed | Quasi-phase-matching of high harmonic generation using counter-propagation pulses |
| title_short | Quasi-phase-matching of high harmonic generation using counter-propagation pulses |
| title_sort | quasi phase matching of high harmonic generation using counter propagation pulses |
| work_keys_str_mv | AT okeeffek quasiphasematchingofhighharmonicgenerationusingcounterpropagationpulses AT hookers quasiphasematchingofhighharmonicgenerationusingcounterpropagationpulses |