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...

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Detalles Bibliográficos
Autores principales:	Torga, J., Marconi, M.C., García-Segundo, C., Villagrán-Muníz, M.
Formato:	JOUR
Materias:	Rotational depolarization Rotational diffusion time Time-resolved fluorescence Fluorescence Molecular dynamics Optical pumping Ultrashort pulses Molecular rotational dynamics Ultrafast phenomena
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00304018_v195_n1-4_p215_Torga
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00304018_v195_n1-4_p215_Torga
record_format	dspace
spelling	todo:paper_00304018_v195_n1-4_p215_Torga2023-10-03T14:40:07Z Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence Torga, J. Marconi, M.C. García-Segundo, C. Villagrán-Muníz, M. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, J. Marconi, M.C. García-Segundo, C. Villagrán-Muníz, M. 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.
format	JOUR
author	Torga, J. Marconi, M.C. García-Segundo, C. Villagrán-Muníz, M.
author_facet	Torga, J. Marconi, M.C. García-Segundo, C. Villagrán-Muníz, M.
author_sort	Torga, J.
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
url	http://hdl.handle.net/20.500.12110/paper_00304018_v195_n1-4_p215_Torga
work_keys_str_mv	AT torgaj ultrafastdynamicsincoumarin153obtainedbydifferentialfluorescence AT marconimc ultrafastdynamicsincoumarin153obtainedbydifferentialfluorescence AT garciasegundoc ultrafastdynamicsincoumarin153obtainedbydifferentialfluorescence AT villagranmunizm ultrafastdynamicsincoumarin153obtainedbydifferentialfluorescence
_version_	1807315388216639488

Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence

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