2026-06-01T01:47:11Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1153242025-01-22T01:09:06Zcom_20.500.14352_14col_20.500.14352_15

Circularly polarized light-induced potentials and the demise of excited states Carrasco, Sebastián Rogan, José Valdivia, Juan Alejandro Chang, Bo Y Malinovsky, Vladimir S Sola Reija, Ignacio 544 Física (Química) Química física (Física) 2307 Química Física 2206 Física Molecular In the presence of strong electric fields, the excited states of single-electron molecules and molecules with large transient dipoles become unstable because of anti-alignment, the rotation of the molecular axis perpendicular to the field vector, where bond hardening is not possible. We show how to overcome this problem by using circularly polarized electromagnetic fields. Using a full quantum description of the vibrational, and rotational degrees of freedom, we characterize the excited electronic state rotational eigenstates. Although the dynamics is metastable, most of the population remains trapped in this dressed by the field and analyze its dependence on the bond length and angle and the stability of its vibro-excited state for hundreds of femtoseconds, allowing quantum control. Contrary to what happens with linearly polarized fields, the photodissociation occurs along the initial molecular axis, not perpendicular to it. Laboratorio de Investigación del Ejército Agencia Nacional de Investigación y Desarrollo Centro para el Desarrollo de la Nanociencia y la Nanotecnología (CEDENNA) Ministerio de Economía, Comercio y Empresa Depto. de Química Física Fac. de Ciencias Químicas TRUE pub 2025-01-21T11:22:39Z 2025-01-21T11:22:39Z 2021-12-28 journal article VoR https://hdl.handle.net/20.500.14352/115324 XXXX-XXXX 10.1039/d1cp04523g eng NRF-2020M3E4A1079793 info:eu-repo/grantAgreement/MINECO//CTQ2015-65033-P/ES/PROCESOS MOLECULARES FOTOINDUCIDOS Y COLISIONALES POR MEDIO DE EXPERIMENTOS LASER Y METODOS TEORICOS/ Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ restricted access application/pdf Royal Society of Chemistry