Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence
We present measurements of the molecular rotational diffusion dynamics in the picosecond scale in a Coumarin 153 ethylene-glycol solution. A novel technique is used in which the fluorescent sample is excited with two femtosecond laser pulses in a pump and probe scheme. The spatial anisotropy generat...
Guardado en:
Autores principales: | , |
---|---|
Publicado: |
2001
|
Materias: | |
Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v195_n1-4_p215_Torga http://hdl.handle.net/20.500.12110/paper_00304018_v195_n1-4_p215_Torga |
Aporte de: |
id |
paper:paper_00304018_v195_n1-4_p215_Torga |
---|---|
record_format |
dspace |
spelling |
paper:paper_00304018_v195_n1-4_p215_Torga2023-06-08T14:55:58Z Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence Torga, Jorge Román Marconi, Mario Carlos Rotational depolarization Rotational diffusion time Time-resolved fluorescence Fluorescence Molecular dynamics Optical pumping Ultrashort pulses Molecular rotational dynamics Rotational depolarization Ultrafast phenomena We present measurements of the molecular rotational diffusion dynamics in the picosecond scale in a Coumarin 153 ethylene-glycol solution. A novel technique is used in which the fluorescent sample is excited with two femtosecond laser pulses in a pump and probe scheme. The spatial anisotropy generated by the first pulse excitation is sampled as a function of delay time through the fluorescence produced by the delayed pulse. The rotational time is obtained from the change in the fluorescence produced as a function of the delay time. © 2001 Elsevier Science B.V. All rights reserved. Fil:Torga, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marconi, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v195_n1-4_p215_Torga http://hdl.handle.net/20.500.12110/paper_00304018_v195_n1-4_p215_Torga |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Rotational depolarization Rotational diffusion time Time-resolved fluorescence Fluorescence Molecular dynamics Optical pumping Ultrashort pulses Molecular rotational dynamics Rotational depolarization Ultrafast phenomena |
spellingShingle |
Rotational depolarization Rotational diffusion time Time-resolved fluorescence Fluorescence Molecular dynamics Optical pumping Ultrashort pulses Molecular rotational dynamics Rotational depolarization Ultrafast phenomena Torga, Jorge Román Marconi, Mario Carlos Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
topic_facet |
Rotational depolarization Rotational diffusion time Time-resolved fluorescence Fluorescence Molecular dynamics Optical pumping Ultrashort pulses Molecular rotational dynamics Rotational depolarization Ultrafast phenomena |
description |
We present measurements of the molecular rotational diffusion dynamics in the picosecond scale in a Coumarin 153 ethylene-glycol solution. A novel technique is used in which the fluorescent sample is excited with two femtosecond laser pulses in a pump and probe scheme. The spatial anisotropy generated by the first pulse excitation is sampled as a function of delay time through the fluorescence produced by the delayed pulse. The rotational time is obtained from the change in the fluorescence produced as a function of the delay time. © 2001 Elsevier Science B.V. All rights reserved. |
author |
Torga, Jorge Román Marconi, Mario Carlos |
author_facet |
Torga, Jorge Román Marconi, Mario Carlos |
author_sort |
Torga, Jorge Román |
title |
Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
title_short |
Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
title_full |
Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
title_fullStr |
Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
title_full_unstemmed |
Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
title_sort |
ultra-fast dynamics in coumarin 153 obtained by differential fluorescence |
publishDate |
2001 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v195_n1-4_p215_Torga http://hdl.handle.net/20.500.12110/paper_00304018_v195_n1-4_p215_Torga |
work_keys_str_mv |
AT torgajorgeroman ultrafastdynamicsincoumarin153obtainedbydifferentialfluorescence AT marconimariocarlos ultrafastdynamicsincoumarin153obtainedbydifferentialfluorescence |
_version_ |
1768544355281272832 |