211 citations · 541 across the 15 of their papers we have counts for
5 papers · 1 filter
Probing Gigahertz Coherent Acoustic Phonons in TiO Mesoporous Thin Films
E. R. Cardozo de Oliveira, C. Xiang, M. Esmann +7
Ultrahigh-frequency acoustic-phonon resonators usually require atomically flat interfaces to avoid phonon scattering and dephasing, leading to expensive fabrication processes, such…
High spectral resolution of GaAs/AlAs phononic cavities by subharmonic resonant pump-probe excitation
Camille Lagoin, Bernard Perrin, Paola Atkinson +1
We present here precise measurement of the resonance frequency, lifetime and shape of confined acoustic modes in the tens of GHz regime in GaAs/AlAs superlattice planar and micropi…
Spatio-Temporal Imaging of the Acoustic Field Emitted by a Single Copper Nanowire Copper Nanowires Fabrication
Cyril Jean, Laurent Belliard, Thomas W. Cornelius +5
The monochromatic and geometrically anisotropic acoustic field generated by 400 nm and 120 nm diameter copper nanowires simply dropped on a 10 m silicon membrane is investigated…
Backward Propagating Acoustic Waves in Single Gold Nanobeams
Cyril Jean, Laurent Belliard, Loïc Becerra +1
Femtosecond pump-probe spectroscopy has been carried out on suspended gold nanostructures with a rectangular cross section lithographed on a silicon substrate. With a thickness fix…
Direct Observation of Propagating Gigahertz Coherent Guided Acoustic Phonons in Free Standing Single Copper Nanowires
Cyril Jean, Laurent Belliard, Thomas W. Cornelius +5
We report on gigahertz acoustic phonon waveguiding in free-standing single copper nanowires studied by femtosecond transient reflectivity measurements. The results are discussed on…