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Laser excitation of gigahertz vibrations in Cauliflower mosaic viruses’ suspension

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TLDR
The interaction of laser pulses with the Cauliflower mosaic virus (CaMV) in a Tris-HCl pH7.5 buffer is investigated in this article, where 20 ns ruby laser pulses are used for the excitation.
Abstract
The interaction of laser pulses with the Cauliflower mosaic virus (CaMV) in a Tris-HCl pH7.5 buffer is investigated. 20 ns ruby laser pulses are used for the excitation. Spectra of the light passing through the sample and reflected from it are registered with the help of a Fabri–Perot interferometer. Stimulated low-frequency Raman scattering (SLFRS) in a CaMV suspension is registered. The SLFRS frequency shift, conversion efficiency and threshold are measured for the first time, to the best of our knowledge.

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Journal ArticleDOI

Optical Trapping, Sizing, and Probing Acoustic Modes of a Small Virus

TL;DR: In this article, a double nanohole (DNH) apertures in a gold film were used to achieve optical trapping of one of the smallest virus particles yet reported, PhiX174, which has a diameter of 25 nm.
Journal ArticleDOI

Stimulated Low-Frequency Scattering of Light in an Aqueous Suspension of the Tobacco Mosaic Virus

TL;DR: In this paper, aqueous suspensions of the tobacco mosaic virus with the scattering frequency depending on the concentration of the virus was observed for the first time, and the theoretically estimated frequency shift of the Stokes component is ∼50 GHz, which agrees with the experimental result.
Journal ArticleDOI

Forward and backward stimulated Brillouin scattering in aqueous suspension of SiO2 spherical nanoparticles

TL;DR: In this article, both backward and forward-directed Stimulated Brillouin Light Scattering (SBLS) were observed in an aqueous suspension of SiO2 nanoparticles with diameters of 100 and 200
Journal ArticleDOI

Stimulated Raman scattering of light in suspension of diamond microparticles in ethanol and in water

TL;DR: The obtained results on stimulated scattering of diamond microparticles in liquids are of interest for estimating the sizes of microcrystals from scattering spectra at a boson peak, as well as for creating a frequency comb of emitters based on stimulated Raman scattering with a large frequency shift.
Journal ArticleDOI

Stimulated Low-Frequency Raman Scattering in Albumin

TL;DR: In this article, the authors investigated low-frequency vibrational modes in human and bovine serum albumin (HSA and BSA), in view of the SLFRS method.
References
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Journal ArticleDOI

Impulsive stimulated scattering: General importance in femtosecond laser pulse interactions with matter, and spectroscopic applications

TL;DR: In this article, it was shown that "impulsive" stimulated Raman scattering (ISRS) should occur, with no laser intensity threshold, when a sufficiently short laser pulse passes through many types of matter.
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Vibration eigenmodes and size of microcrystallites in glass: Observation by very-low-frequency Raman scattering.

TL;DR: It is shown that vibrational surface modes of particles are responsible for this Raman scattering and the frequency of the maximum of scattering is proportional to the inverse diameter of the particles, which are spherical spinel microcrystallites.
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Low-wave-number Raman scattering from CdS x Se 1¿x quantum dots embedded in a glass matrix

TL;DR: In this article, the Raman scattering on acoustical phonons from quantum dots in a glass matrix was investigated for in-and off-resonance conditions, and the contribution of inhomogeneous broadening is 30% of the symmetric mode linewidth.
Journal ArticleDOI

Selective inactivation of micro-organisms with near-infrared femtosecond laser pulses

TL;DR: It is shown that if the wavelength and pulse width of the excitation femtosecond laser are appropriately selected, there exists a window in power density that enables us to achieve selective inactivation of target viruses and bacteria without causing cytotoxicity in mammalian cells.
Journal ArticleDOI

Brillouin and Raman scattering from the acoustic vibrations of spherical particles with a size comparable to the wavelength of the light

TL;DR: In this paper, the inelastic light scattering of the acoustic vibration of spherical nanoparticles has been studied within a continuum approximation, extending the previous models, valid for small particles, to the case of particle sizes comparable with the wavelength of the light.
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