Coherent phonon dynamics in diamond detected via multiphoton absorption
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5119056
Abstract: Coupling between ultrafast lattice dynamics and electronic polarization becomes increasingly important for generating terahertz frequency combs, monitor atomic potential landscapes, or high-speed information processing. Here, we show that the carrier population excited by multiphoton (5-photon)… read more here.
Keywords: phonon dynamics; dynamics diamond; coherent phonon; geometry ... See more keywords
Ultrafast modulation of electronic structure by coherent phonon excitations
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.081101
Abstract: J. Weisshaupt, A. Rouzée, M. Woerner1,∗ M. J. J. Vrakking, T. Elsaesser, E. L. Shirley, and A. Borgschulte Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie, D-12489 Berlin, Germany National Institute of Standards and Technology, Gaithersburg, MD… read more here.
Keywords: electronic structure; coherent phonon; modulation electronic; phonon excitations ... See more keywords
Direct Measurement of Anharmonic Decay Channels of a Coherent Phonon.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.125901
Abstract: We report channel-resolved measurements of the anharmonic coupling of the coherent A_{1g} phonon in photoexcited bismuth to pairs of high wave vector acoustic phonons. The decay of a coherent phonon can be understood as a… read more here.
Keywords: direct measurement; coherent phonon; phonon; measurement anharmonic ... See more keywords
Enhancing the Coherent Phonon Transport in SiGe Nanowires with Dense Si/Ge Interfaces
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12244373
Abstract: The manipulation of phonon transport with coherent waves in solids is of fundamental interest and useful for thermal conductivity design. Based on equilibrium molecular dynamics simulations and lattice dynamics calculations, the thermal transport in SiGe… read more here.
Keywords: density; coherent phonon; phonon transport; phonon ... See more keywords