Charge mechanism of low-frequency stimulated Raman scattering on viruses

Oshurko, V.B.; Karpova, O.V.; Davydov, M.A.; Fedorov, A.N.; Bunkin, A.F.; Pershin, S.M.; Grishin, M.Y.

Авторы: Oshurko V.B., Karpova O.V., Davydov M.A., Fedorov A.N., Bunkin A.F., Pershin S.M., Grishin M.Y.
Журнал: Physical Review A
Том: 105
Номер: 4
Год издания: 2022
Издательство: American Physical Society
Местоположение издательства: USA
Первая страница: 043513-1
Последняя страница: 043513-8
Номер статьи: 043513
DOI: 10.1103/physreva.105.043513
Аннотация: A physical mechanism of stimulated light scattering on nanoscale objects in a water suspension is proposed.The proposed mechanism is based on the dipole interaction between the light wave and the inevitableuncompensated electrical charge on a nanoscale object (e.g., a virus or nanoparticle) in a water environment.Experimental data on the tobacco mosaic virus are presented to support the proposed physical mechanism. It isdemonstrated that stimulated amplification spectral line frequencies observed experimentally are well explainedby the proposed mechanism. In particular, the absence of lower-frequency lines and the shifting of generationlines when the pH changes are due to ion friction in the ionic solution environment. The selection rules observedexperimentally also confirm the dipole interaction type. It is shown that microwave radiation on the nanoscaleobject acoustic vibrations frequency should appear under such scattering conditions. We demonstrate that suchconditions also allow for local selective heating of nanoscale objects from dozens to hundreds of degrees Celsius.This effect is controlled by the optical irradiation parameters, and it can be used to selectively affect a specifictype of virus.
Добавил в систему: Карпова Ольга Вячеславовна

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Charge mechanism of low-frequency stimulated Raman scattering on virusesстатья

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