Zobrazeno 1 - 10
of 28
pro vyhledávání: '"S. Hogiu"'
Publikováno v:
The Journal of Chemical Physics. 113:1587-1594
Vibrational relaxation in the electronic ground state initiated by intramolecular back-electron transfer (b-ET) of betaine-30 (B-30) is studied by picosecond time-resolved anti-Stokes Raman spectroscopy. Measurements were carried out with B-30 dissol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c863d54bdcca33d2f35932a35449662
https://doi.org/10.1063/1.481946
https://doi.org/10.1063/1.481946
Publikováno v:
The Journal of Physical Chemistry A. 104:4211-4217
A strong S1−S2 vibronic coupling effect is observed in the time-resolved coherent anti-Stokes Raman spectroscopy (CARS) spectra originating from the first excited singlet state of diphenylhexatriene. As determined from picosecond CARS measurements,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9283d840fdb13d1d41edd1a64073c1d1
https://doi.org/10.1021/jp992839a
https://doi.org/10.1021/jp992839a
Publikováno v:
Journal of Raman Spectroscopy. 31:797-803
We present a combined experimental and theoretical study of vibrational modes and excited-state geometry changes of betaine-30 (B-30). Infrared and Raman spectra were recorded under electronic off-resonant excitation conditions and also in resonance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930303ea99167cc031978c42bd1a75f3
https://doi.org/10.1002/1097-4555(200008/09)31:8/9<797::aid-jrs604>3.0.co
https://doi.org/10.1002/1097-4555(200008/09)31:8/9<797::aid-jrs604>3.0.co
Publikováno v:
Chemical Physics Letters. 312:407-414
Picosecond vibrational relaxation initiated by intramolecular electron back-transfer of Betaine 30 in propylene carbonate is studied by time-resolved anti-Stokes Raman scattering. We demonstrate for the first time distinct nonequilibrium populations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ddad452f88f6bd63fb35affada9310a
https://doi.org/10.1016/s0009-2614(99)00959-8
https://doi.org/10.1016/s0009-2614(99)00959-8
Publikováno v:
Chemical Physics Letters. 303:218-222
Applying the polarization-sensitive variant of coherent anti-Stokes raman scattering (CARS) with picosecond time resolution solvent-dependent vibrational shifts and depolarization ratios of vibrational resonances of the first excited singlet state of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b55324d00b9d99aadfc4e31f0c61bc02
https://doi.org/10.1016/s0009-2614(99)00191-8
https://doi.org/10.1016/s0009-2614(99)00191-8
Publikováno v:
Chemical Physics Letters. 295:56-62
Raman studies of diphenylhexatriene in the first excited singlet state evidence strong vibronic coupling between two close 1Bu/2Ag states. The geometrical change after photoexcitation contains a dominant contribution of a low-frequency mode with bu s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::946b178c03f9d2c6837043a08dca327b
https://doi.org/10.1016/s0009-2614(98)00935-x
https://doi.org/10.1016/s0009-2614(98)00935-x
Autor:
Miruna Roman, Gafencu O, S. Hogiu, Benone Carstocea, Mihail Lucian Pascu, N. Moise, Silvia Apostol, Gabriel Popescu
Publikováno v:
Lasers in Medical Science. 13:148-154
A simple method of characterising epithelial and endothelial corneal cells using laser light is presented. A continuous wave helium-neon laser emitting at a wavelength of 632.8 nm and a continuous wave argon laser emitting at 488 and 514.5 nm were us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd35ccd8f5022ae545c150e384c4735e
https://doi.org/10.1007/s101030050069
https://doi.org/10.1007/s101030050069
Publikováno v:
Chemical Physics Letters. 287:8-16
Time-resolved coherent antistokes Raman spectroscopy (CARS) spectra from an excited singlet state of diphenylhexatriene (DPH) are reported. As determined from the CARS measurements, the excited-state population increases on a sub-picosecond time scal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88a7f26895926eb3cc51a728fb1127a3
https://doi.org/10.1016/s0009-2614(98)00119-5
https://doi.org/10.1016/s0009-2614(98)00119-5
Publikováno v:
Laser Optics 2000: Ultrafast Optics and Superstrong Laser Fields.
Stimulated Raman scattering (SRS) excited by picosecond pulses (3.5 - 4 ps) of a synchronously pumped dye laser has been studied in compressed methane, hydrogen and their mixture. Physical energetic SRS-efficiencies (corrected for the linear losses o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d17235ed56ae46c6826b996787b18f2
https://doi.org/10.1117/12.418810
https://doi.org/10.1117/12.418810
Autor:
S. Hogiu, Marcel A. Ionita, Miruna Roman, Silvia Apostol, Benone Carstocea, Mihail Lucian Pascu, N. Moise, Gheorghe Popescu, Gafencu O
Publikováno v:
SPIE Proceedings.
A new method for corneal structure investigation is reported. The light reflected form rabbit cornea is recorded by a video-camera so that the images of epithelium and endothelium are obtained. Because of the great magnification factor due to the cor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd406af2d650f781e006b1516628605c
https://doi.org/10.1117/12.260882
https://doi.org/10.1117/12.260882