Publications by authors named "Andrey I Sharkov"
Article Synopsis
- The study explores the mechanical properties of layered crystals with a focus on hBN/WSe/hBN heterostructures, using a specialized ultrasonic technique for detailed analysis.
- A picosecond measurement method analyzes the temporal changes in reflection coefficients after laser pulse excitation, allowing for the detection of sound waves reflecting off various layers within the structure.
- The findings highlight the low phonon dissipation in these materials below 150 GHz, indicating their promise for applications in nanotechnology and acoustics.
The optical excitation and propagation of converging surface acoustic waves on silicon with orientations (001) and (111) have been experimentally studied. An axicon-assisted formation of an annular irradiated region on the sample surface served as a source for converging surface waves. Surface wave patterns at different times were recorded using a Sagnac interferometer with spatial resolution.
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