| Autre titre | Control of N2+ air lasing |
|---|
| Téléchargement | - Voir la version finale : Control of N₂⁺ air lasing (PDF, 2.1 Mio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1103/PhysRevA.102.053110 |
|---|
| Auteur | Rechercher : Britton, MathewIdentifiant ORCID : https://orcid.org/0000-0001-8309-8290; Rechercher : Lytova, Marianna; Rechercher : Ko, Dong HyukIdentifiant ORCID : https://orcid.org/0000-0002-7840-9995; Rechercher : Alqasem, Abdulaziz; Rechercher : Peng, PengIdentifiant ORCID : https://orcid.org/0000-0002-0165-4984; Rechercher : Villeneuve, D. M.1; Rechercher : Zhang, Chunmei; Rechercher : Arissian, Ladan1; Rechercher : Corkum, P. B. |
|---|
| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
|
|---|
| Format | Texte, Article |
|---|
| Résumé | A near-infrared laser generates gain on transitions between the B²Σ₉⁺ and X²Σ₉⁺ states of the nitrogen molecular cation in part by coupling the X²Σ₉⁺ and A²IIᵤ states in the V system. Traditional time resolved pump-probe measurements rely on postionization coupling by the pump pulse to initialize dynamics in the A²IIᵤ state. Here we show that a weak second excitation pulse reduces ambiguity because it acts only on the ion independent of ionization. The additional control pulse can increase gain by moving population to the A²IIᵤ state, which modifies the lasing emission in two distinct ways. The presence of fast decoherence on X²Σ₉⁺ to A²IIᵤ transitions may prevent the formation of a coherent rotational wave packet in the ground state in our experiment, but the control pulse can reverse impulsive alignment by the pump pulse to remove rotational wave packets in the B²Σᵤ⁺ state. |
|---|
| Date de publication | 2020-11-13 |
|---|
| Maison d’édition | American Physical Society |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 88034075-f515-4e7d-aa00-595d1ce2ce99 |
|---|
| Enregistrement créé | 2021-05-11 |
|---|
| Enregistrement modifié | 2021-05-12 |
|---|
