Zobrazeno 1 - 10
of 146
pro vyhledávání: '"H. Dubost"'
Autor:
A. Ouvrard, Wanquan Zheng, H. Dubost, Jijin Wang, Serge Carrez, Sven Nave, Ahmed Ghalgaoui, Bernard Bourguignon
Publikováno v:
The Journal of Physical Chemistry C. 118:19688-19700
Sum frequency generation (SFG) and low-energy electron diffraction (LEED) have been used to revisit CO adsorption on Pd(100) from very low coverages up to saturation at 300 K. Below 0.5 ML, variations of SFG frequency and intensity with coverage are
Autor:
Ahmed Ghalgaoui, Jijin Wang, Serge Carrez, H. Dubost, Bernard Bourguignon, A. Ouvrard, Wanquan Zheng
Publikováno v:
Surface Science. 626:26-39
Quantitative analysis of BroadBand Sum Frequency Generation (BBSFG) vibrational spectra by deconvolution into Lorentzian components has been shown recently to suffer from complications that depend on the spectro-temporal properties and delay of the v
Publikováno v:
Chemical Physics. 341:207-217
Environment effects on the vibrational dynamics of tungsten hexacarbonyl in cryogenic matrices are investigated with the use of the CLIO infrared free-electron laser by measuring the population relaxation time T1 in the pump-probe configuration and t
Publikováno v:
Journal of Chemical Physics
Journal of Chemical Physics, American Institute of Physics, 2003, 118 (21), pp.9582. ⟨10.1063/1.1570403⟩
Journal of Chemical Physics, 2003, 118 (21), pp.9582. ⟨10.1063/1.1570403⟩
Journal of Chemical Physics, American Institute of Physics, 2003, 118 (21), pp.9582. ⟨10.1063/1.1570403⟩
Journal of Chemical Physics, 2003, 118 (21), pp.9582. ⟨10.1063/1.1570403⟩
The vibrational dynamics of DCl isolated in nitrogen matrices is investigated by means of time-resolved one-color degenerate four-wave mixing experiments with the help of infrared absorption spectroscopy. Coherence times are found in the tens to hund
Publikováno v:
Surface Science. 528:177-182
Femtosecond visible pulses at 800 nm are observed to induce permanent spectral changes in the CO internal stretch region of CO/Pt(1 1 1) at 300 K, using sum frequency generation vibrational spectroscopy. By contrast, IR femtosecond, and visible picos
Autor:
Frédéric Fournier, Wanquan Zheng, Michel L. Gaillard, H. Dubost, Bernard Bourguignon, Serge Carrez
Publikováno v:
Surface Science. 515:567-574
Second harmonic non-linear susceptibilities of Pd(1 1 1) are derived at 800 nm fundamental wavelength from measurements of second harmonic generation (SHG) as a function of azimuth and input and output polarizations. By contrast to other metal surfac
Autor:
Jean-Pierre Boilot, Jean-Michel Ortega, H. Dubost, Michel Broquier, Frederic Chaput, Claudine Crépin, Jean-Pierre Galaup
Publikováno v:
Journal of Luminescence. 86:363-370
One color pump-probe and photon-echo experiments have been performed on the CO stretching mode of W(CO) 6 at about 1982 cm -1 in organo-mineral xerogels. Over the whole temperature range studied, from room temperature to 5 K, the population lifetime
Publikováno v:
Surface Science. 440:151-162
The laser induced desorption of CO from Pd(111) at 308 nm and 532 nm is compared to the thermal desorption by recording FTIR and SFG spectra of the CO molecules remaining on the surface. There is no photodesorption from a fully ordered CO layer. Howe
Autor:
Jean-Pierre Galaup, J. M. Berset, A. Tramer, Jean-Michel Ortega, Claudine Crépin, Michel Broquier, H. Dubost, D. L'hermite
Publikováno v:
Scopus-Elsevier
Laser Chemistry
Laser Chemistry, Hindawi Publishing Corporation, 1999, 19 (1-4), pp.65-69
Laser Chemistry, 1999, 19 (1-4), pp.65-69
Laser Chemistry
Laser Chemistry, Hindawi Publishing Corporation, 1999, 19 (1-4), pp.65-69
Laser Chemistry, 1999, 19 (1-4), pp.65-69
Single color pump-probe and photon-echo experiments have been performed on the CO stretching mode of W(CO)6 at about 1983 cm-1 in various liquids and solid environments. Combined with absorption data, the measured T1 and T2 times suggest the followin
Publikováno v:
Surface Science. 418:171-180
Sum frequency generation and IR absorption spectra of CO adsorbed on Pd(111) are reported. Adsorption of CO in the surface temperature range 150–230 K results in the appearance of extra peaks in the spectral range of the CO stretching vibration. Th