Laser excitation of gigahertz vibrations in Cauliflower mosaic viruses suspension
N. V. Tcherniega, S. M. Pershin, A. F. Bunkin, E. K. Donchenko, O. V., Karpova, A. D. Kudryavtseva, V. N. Lednev, T. V. Mironova, M. A. Shevchenko,, M. A. Strokov, and K. I. Zemskov
TL;DR
This study demonstrates the first observation of stimulated low-frequency Raman scattering in a Cauliflower mosaic virus suspension using laser pulses, revealing new insights into virus-laser interactions.
Contribution
It reports the first measurement of SLFRS frequency shift, efficiency, and threshold in CaMV suspension, advancing understanding of virus optical properties.
Findings
SLFRS observed in CaMV suspension
Measured frequency shift and conversion efficiency
Identified laser threshold for SLFRS
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 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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