Tracking ultrafast dynamics by sub-20-fs UV pulses generated in the lab open atmosphere
Autor:
Peralta Conde, Alvaro
; Lamas, Iker
; Sánchez Albaneda, Marina
; Méndez, Cruz
; Longarte, A.
; Montero, R.
Fecha:
2023Palabra clave:
Revista / editorial:
Chemical Physics LettersCitación:
Conde, Á. P., Lamas, I., Albaneda, M. S., Méndez, C., Longarte, A., & Montero, R. (2023). Tracking ultrafast dynamics by sub-20-fs UV pulses generated in the lab open atmosphere. Chemical Physics Letters, 812, 140268.Tipo de Ítem:
Articulo Revista IndexadaResumen:
This study describes a simple method to generate sub-20 fs UV-pulses (264 nm) by third-harmonic generation, in an air-plasma filament formed after focusing the fundamental 800 nm beam directly in the lab open-atmosphere. The generated pulses are applied to track the relaxation through the conical intersection that couples the S2 and S1 states, in the benchmark molecule of naphthalene. The transients, with a resolution of about 25 fs, show two differentiate patterns of quantum beats. The assignation of these oscillations to specific modes in the lower S1 state and to electronic coherence between the two coupled states is discussed.
Ficheros en el ítem
Nombre: tracking_ultrafast_dynamics_by_sub20fs_UV_pulses_generated.pdf
Tamaño: 2.201Mb
Formato: application/pdf
Este ítem aparece en la(s) siguiente(s) colección(es)
Estadísticas de uso
Año |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
2020 |
2021 |
2022 |
2023 |
2024 |
Vistas |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
36 |
67 |
Descargas |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
13 |
36 |
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Influence of coherent adiabatic excitation on femtosecond transient signals
Peralta Conde, Alvaro ; Montero, R.; Longarte, A. (Physica Scripta, 03/2021)Femtosecond laser pulses are the tools of choice for inducing and tracking the temporal evolution of electronic excitation in molecular systems. To obtain this information, a proper theoretical modeling of the observables ... -
Desorption and ablation regimes in UV-MALDI: the critical fluence
Alonso, E.; Peralta Conde, Alvaro (RSC Advances, 2023)Although MALDI is a widely used technique, there is so far no theoretical description able to reproduce some critical aspects of the experimental results. For example, there is experimental as well as theoretical controversy ... -
Aprendizaje de la ciencia a través del arte: el atelier como oportunidad de innovación didáctica
Marenco Mara, Paola; Varela Gadea, Florencia; Peralta Conde, Alvaro (TECHNO Review. International Technology, Science and Society Review / Revista Internacional de Tecnología, Ciencia y Sociedad, 2023)El objetivo de nuestro trabajo es analizar diferentes objetos científicos y estudiar posibles estrategias didácticas vehiculizadas por el dispositivo de atelier. Utilizaremos como metodología el relevamiento de experiencias ...