Vitaly Gusev

TL;DR: In this article, the authors assess the state of the art of nanophononics, describing the recent achievements and the open challenges in nanoscale heat transport, coherent phonon generation and exploitation, and in nano- and optomechanics.

TL;DR: In this paper, a cross-modulation effect consisting of the modulation transfer from an intensive, initially slowly amplitude-modulated stronger (pump) excitation to the probe signal is discussed.

TL;DR: A new mechanism is proposed for the linear and amplitude-dependent dissipation due to elastic-wave-crack interaction that implies a drastic enhancement of the thermoelastic coupling at high-compliance microdefects and the high stress-sensitivity of the defects leads to a strong stress dependence of the resultant dissipation.

TL;DR: In this article, the elasticity of a thin transparent film of a nanoporous low-k material using picosecond acoustic interferometry was extracted from time-resolved femtosecond optical reflectivity measurements.

TL;DR: An experimental observation of a new nonlinear-modulation effect for longitudinal elastic waves is reported, a direct elastic wave analogy with the so-called Luxemburg-Gorky (L-G) effect known over 60 years for radio waves propagating in the ionosphere.