Abstract:
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.
Registro:
Documento: |
Artículo
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Título: | Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence |
Autor: | Torga, J.; Marconi, M.C.; García-Segundo, C.; Villagrán-Muníz, M. |
Filiación: | Laboratorio De Electrónica Cuántica, Departamento De Física - FCEyN, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina Lab. De Óptica Aplicada, Centro De Instrumentos, Univ. Nacional Autónoma De México, A.P. 70-186, C.P. 04510 Mexico D.F., Mexico Lab. De Optoelectrónica, Fac Ingeniería, Univ Tecnológica Nacional Reg Delta, San Martin y Liniers, Campana, 2804 Prov de Buenos Aires, Argentina
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Palabras clave: | Rotational depolarization; Rotational diffusion time; Time-resolved fluorescence; Fluorescence; Molecular dynamics; Optical pumping; Ultrashort pulses; Molecular rotational dynamics; Rotational depolarization; Ultrafast phenomena |
Año: | 2001
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Volumen: | 195
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Número: | 1-4
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Página de inicio: | 215
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Página de fin: | 219
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DOI: |
http://dx.doi.org/10.1016/S0030-4018(01)01242-1 |
Título revista: | Optics Communications
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Título revista abreviado: | Opt Commun
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ISSN: | 00304018
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CODEN: | OPCOB
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304018_v195_n1-4_p215_Torga |
Referencias:
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Citas:
---------- APA ----------
Torga, J., Marconi, M.C., García-Segundo, C. & Villagrán-Muníz, M.
(2001)
. Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence. Optics Communications, 195(1-4), 215-219.
http://dx.doi.org/10.1016/S0030-4018(01)01242-1---------- CHICAGO ----------
Torga, J., Marconi, M.C., García-Segundo, C., Villagrán-Muníz, M.
"Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence"
. Optics Communications 195, no. 1-4
(2001) : 215-219.
http://dx.doi.org/10.1016/S0030-4018(01)01242-1---------- MLA ----------
Torga, J., Marconi, M.C., García-Segundo, C., Villagrán-Muníz, M.
"Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence"
. Optics Communications, vol. 195, no. 1-4, 2001, pp. 215-219.
http://dx.doi.org/10.1016/S0030-4018(01)01242-1---------- VANCOUVER ----------
Torga, J., Marconi, M.C., García-Segundo, C., Villagrán-Muníz, M. Ultra-fast dynamics in Coumarin 153 obtained by differential fluorescence. Opt Commun. 2001;195(1-4):215-219.
http://dx.doi.org/10.1016/S0030-4018(01)01242-1