Femtosecond laser control of induced anisotropy in a liquid: selective spectroscopy of intramolecular vibrations of carbon tetrachloride

The influence of interactions between isotopoloques on coherent, ultrafast vibrational dynamics of liquid C2Cl4

“…It can be seen in Fig. 3 that the anisotropic response of the medium decays much faster than the isotropic one, which is connected with rotational diffusion of the anisotropic molecules, 20,[26][27][28] and which results in much wider peaks in the spectrum shown in Fig. 4.…”

Dynamics of intermolecular interactions in CCl4via the isotope effect by femtosecond time-resolved spectroscopy

“…heterodyne-detected optical Kerr effect spectroscopy (HD-OKE), [17][18][19]24 coherent Raman probe scattering, 22 two-dimensional Raman spectroscopy, 20 transient grating spectroscopy (TG-HD-ISRS), 23 polarization selective ISRS spectroscopy 25 and controlled selective two pulse HD-OKE spectroscopy. 26 In the present paper we report our studies on the transient dynamics of intra-and intermolecular vibrations in CCl 4 by using time resolved pumpprobe transient transmission spectroscopy, in which we observed quite new features of the isotope splitting of the n 1 isotropic vibration band. The Fourier transform of the time resolved signal for this band appears to have quite different proportions of peak amplitudes than in the spontaneous Raman spectrum.…”

“…[16][17][18][19] Although great effort has been focused on stationary studies of carbon tetrachloride, only a few papers have been reported on the dynamics of molecular vibrations and intermolecular interactions. [17][18][19][20][21][22][23][24][25][26] Several pumpprobe time resolved Raman methods, in which molecular vibrations are excited due to an impulsive stimulated Raman scattering (ISRS) process, have been applied, i.e. heterodyne-detected optical Kerr effect spectroscopy (HD-OKE), [17][18][19]24 coherent Raman probe scattering, 22 two-dimensional Raman spectroscopy, 20 transient grating spectroscopy (TG-HD-ISRS), 23 polarization selective ISRS spectroscopy 25 and controlled selective two pulse HD-OKE spectroscopy.…”

Coherent control for separation of the librational response through the ultrafast optically-heterodyne-detected optical- Kerr-effect (OHD-OKE)

“…For the suppression of Raman-active vibrations we have used the second pump pulse with certain delay time. The polarization of the second pulse is the same as the polarization of the first pulse [8,13]. In [14] the possibility of the simultaneous suppression of the vibrational and orientational responses was theoretically illustrated.…”

“…It can cause some difficulties for realization of multipulse experiment. Furthermore, laser coherent control of vibrational dynamics in chloroform and carbon tetrachloride is described in [7][8][9][10][11][12]. The cases of suppression and enhancement of the vibrational responses are realized for coherent laser control by the linearly polarized pulses.…”