Laser-field-induced coherent molecular librations in liquid

Бункин, А. Ф.; Першин, С. М.; Nurmatov, A. A.

doi:10.1134/s1054660x07010057

Cited by 10 publications

(23 citation statements)

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“…Such rotational spectra have been observed in aqueous solutions of protein [7,8], hydrogen peroxide [9], DNA, as well as some salts. The distortion of liquid water local structure in solution follows from the molecular dynamic simulations (see, for example [10]) and qualitatively coincides with the experiments on nuclear magnetic resonance [11] and microwave spectroscopy [12,13].…”

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confidence: 91%

“…The bold arrows indicate the symmetric Brillouin peaks of water (the acoustic phonon resonances at ∼ ± 0.2 cm −1 ) and dash arrows point out both hydroxyl and hydrogen peroxide peaks. Note, that these peaks have been detected in water [9].…”

mentioning

confidence: 93%

“…1 demonstrates experimental RIKES spectrum of SWNT suspension in water (1) and simulated spectrum of H 2 O molecule (2) in the expected band of SWNT radial breathing modes: 150-250 cm −1 . The simulation procedure of H 2 O RIKES spectra has been described elsewhere [9]. Fig.…”

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confidence: 99%

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Four photon low-frequency Raman spectroscopy of single wall carbon nanotubes

Бункин

Першин

2007

Laser Phys. Lett.

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Here we present the data of study of carbon nanotubes at ultra low (less than 0.1 μg/ml) concentration in aqueous surfactant suspension by four photon coherent Raman spectroscopy technique. The spectra have been recorded separately in the two spectral ranges from 100 to 250 cm-1 (3 – 7.5 THz) and ± 10 cm-1 (± 300 GHz). The two nanotube radial breathing modes (RBM) at 235 and 165 cm-1 have been observed. Besides we have detected the increasing of the rotational spectrum amplitude of H2O molecule arising on the water-nanotube interface. In fact, the amplitude increasing is observed mainly for ortho- spin-isomers of H2O.

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confidence: 91%

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confidence: 93%

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Four photon low-frequency Raman spectroscopy of single wall carbon nanotubes

Бункин

Першин

2007

Laser Phys. Lett.

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“…Note that under the appropriate choice of polarization conditions for waves E (1) and E (2) [6][7][8] the detected signal is following:…”

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confidence: 99%

Four-photon laser spectroscopy of solids in 0–0.15 THz

2005

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Four-photon coherent spectroscopy of fused quartz, crown glass K8 and NaCl crystal in 0-5 cm −1 have been done. It was established that the spectra contain the Brillouin resonances on longitudinal and transversal hypersound, as well as distinct resonances at ∼1.6 cm −1 , which can be attributed to hydroxyl (OH) rotations. The fine structure of Rayleigh wing scattering in fused quartz has been observed for the first time. The detected lines 0.18 cm −1 and 0.37 cm −1 (5.4 and 11.1 GHz, respectively) are attributed to spheroidal modes ν 22 and ν 32 of SiO 2 spheres with the diameter ∼760 nm.Intensity, a.u.

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“…17. The counterpropagating waves E .1/ and E .2/ with frequencies ω 1 and ω 2 interacted in a cell with the liquids under study.…”

Section: Methodsmentioning

confidence: 99%

Measurement of fracton dimensionality in liquids by four‐photon Rayleigh‐wing spectroscopy

Бункин

Gorchakov

Nurmatov

et al. 2006

J Raman Spectroscopy

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Four-photon spectroscopy of the Rayleigh wing was applied to study distilled and Milli-Q water, liquid carbon tetrachloride (CCl 4 ), 30% aqueous solution of hydrogen peroxide (H 2 O 2 ) and 0.4 mM aqueous solution of a-chymotrypsin protein, in the spectral range from −10 to 10 cm −1 . The observed spectra allowed the measurement of the fracton dimensionality as d = 2.87 ± 0.01 in Milli-Q water, 2.97 ± 0.02 in the protein solution, 3.00 ± 0.02 in CCl 4 and H 2 O 2 and 3.15 ± 0.05 in distilled water. The variation of fractal dimensionality can be interpreted as indication of the structural differences in the investigated liquids. In the presence of protein and hydrogen peroxide molecules, this difference indicates that the hydrogen-bond network of Milli-Q water is restructured in the solution.

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Laser-field-induced coherent molecular librations in liquid

Cited by 10 publications

References 9 publications

Four photon low-frequency Raman spectroscopy of single wall carbon nanotubes

Four photon low-frequency Raman spectroscopy of single wall carbon nanotubes

Four-photon laser spectroscopy of solids in 0–0.15 THz

Measurement of fracton dimensionality in liquids by four‐photon Rayleigh‐wing spectroscopy

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