УДК: 535.375.5+535.016

Interpretation of the spectra of surface-enhanced hyper-Raman scattering of symmetric molecules, based on dipole–quadrupole theory

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Полуботко А.М., Челибанов В.П.Интерпретация спектров поверхностно усиленного иперкомбинационного рассеяния симметричных молекул на основе дипольно-квадрупольной теории // Оптический журнал. 2013. Т. 80. № 12. С. 5–16.

Polubotko A. M., Chelibanov V. P. Interpretation of the spectra of surface-enhanced hyper-Raman scattering of symmetric molecules, based on dipole–quadrupole theory [in Russian] // Opticheskii Zhurnal. 2013. V. 80. № 12. P. 5–16.

For citation (Journal of Optical Technology):

A. M. Polubotko and V. P. Chelibanov, "Interpretation of the spectra of surface-enhanced hyper-Raman scattering of symmetric molecules, based on dipole–quadrupole theory," Journal of Optical Technology. 80(12), 723-730 (2013). https://doi.org/10.1364/JOT.80.000723.

Abstract:

The spectra of enhanced hyper-Raman scattering (Hyper RS) by symmetrical molecules studied in the literature are analyzed on the basis of the dipole–quadrupole theory of surface-enhanced Hyper RS of light and the concept of the existence of a strong quadrupole interaction of light with the molecules. It is shown that the theory predicts the appearance of forbidden lines in the enhanced Hyper-RS spectra (in molecules with sufficiently high symmetry), caused by totally symmetric vibrations and transforming according to a single irreducible representation. A consideration of the experimental spectra of phenazine, pyrazine, and pyridine confirmed the existence of the indicated forbidden lines and made it possible to explain the features of the spectra of these molecules. A critique is presented of the theoretical analysis of the enhanced Hyper-RS spectra of trans-1,2-bis(4-pyridyl)ethylene and crystal violet carried out by other authors.

Keywords:

strong quadrupolar interaction, enhanced hypercombination scattering, sampling rules, forbidden lines

OCIS codes: 300.6170, 300.6390, 300.6450, 300.6490, 290.5820, 290.5825, 290.5860, 290.5880, 240.5770

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