Recollision-Induced Superradiance of Ionized Nitrogen Molecules
We propose a new mechanism to explain the origin of optical gain in the transitions between the excited and ground states of the ionized nitrogen molecule following irradiation of neutral nitrogen molecules with an intense ultrashort laser pulse. An efficient transfer of population to the excited st...
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| Veröffentlicht in: | Physical review letters 2015-09, Vol.115 (13), p.133203-133203, Article 133203 |
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| container_end_page | 133203 |
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| container_issue | 13 |
| container_start_page | 133203 |
| container_title | Physical review letters |
| container_volume | 115 |
| creator | Liu, Yi Ding, Pengji Lambert, Guillaume Houard, Aurélien Tikhonchuk, Vladimir Mysyrowicz, André |
| description | We propose a new mechanism to explain the origin of optical gain in the transitions between the excited and ground states of the ionized nitrogen molecule following irradiation of neutral nitrogen molecules with an intense ultrashort laser pulse. An efficient transfer of population to the excited state is achieved via field-induced multiple recollisions. We show that the proposed excitation mechanism must lead to a superradiant emission, a feature that we confirm experimentally. |
| doi_str_mv | 10.1103/PhysRevLett.115.133203 |
| format | Article |
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| ispartof | Physical review letters, 2015-09, Vol.115 (13), p.133203-133203, Article 133203 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_01204958v1 |
| source | American Physical Society Journals |
| subjects | Emission Excitation Gain Ground state Irradiation Lasers Optics Origins Physics |
| title | Recollision-Induced Superradiance of Ionized Nitrogen Molecules |
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