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Journal articles
Lasing without population inversion in N2+
Abstract : We experimentally demonstrate the existence of long-lived coherent polarizations coupling simultaneously ground state X (X 2 Σ + g) to excited states A (A 2 Πu) and B (B 2 Σ + u) of N + 2 inside a plasma created by a short intense laser pulse at 800 nm. This three-level V-scheme arrangement is responsible for a strong optical gain without population inversion at the B-X transition at 391.4 nm. Simulations based on Maxwell-Bloch equations reproduce well the kinetics and the pressure dependence of the gain.
Cited literature [37 references]
https://hal-ensta-paris.archives-ouvertes.fr//hal-02365149
Contributor : Aurélien Houard <>
Submitted on : Friday, November 15, 2019 - 12:12:15 PM
Last modification on : Tuesday, February 4, 2020 - 1:36:06 AM
Document(s) archivé(s) le : Sunday, February 16, 2020 - 4:19:06 PM
Contributor : Aurélien Houard <>
Submitted on : Friday, November 15, 2019 - 12:12:15 PM
Last modification on : Tuesday, February 4, 2020 - 1:36:06 AM
Document(s) archivé(s) le : Sunday, February 16, 2020 - 4:19:06 PM
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APL_phot_1.5116898.pdf
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