Strong confinement, in all dimensions, and high mechanical frequencies are highly
desirable for quantum optomechanical applications. We show that GaAs/AlAs micropillar …

Recent experiments demonstrated that GaAs/AlAs based micropillar cavities are promising
systems for quantum optomechanics, allowing the simultaneous three-dimensional …

Band inversion in one-dimensional superlattices is a strategy to generate topological
interface modes in electronics, optics, acoustics, and nanophononics. Despite their potential …

Fundamental observations in physics ranging from gravitational wave detection to laser
cooling of a nanomechanical oscillator into its quantum ground state rely on the interaction …

Coherent phonon generation by optical pump-probe experiments has enabled the study of
acoustic properties at the nanoscale in planar heterostructures, plasmonic resonators …

Radiation pressure, electrostriction, and photothermal forces have been investigated to
evidence backaction, nonlinearities, and quantum phenomena in cavity optomechanics. We …

Acoustic vibrations at the nanoscale (GHz-THz frequencies) and their interactions with
electrons, photons, and other excitations are the heart of an emerging field in physics …

We study the temporal dynamics of photoexcited carriers in distributed Bragg reflector based
semiconductor micropillars at room temperature. Their influence on the process of coherent …

Slow and confined light have been exploited in optoelectronics to enhance light-matter
interactions. Here we describe the GaAs/AlAs semiconductor microcavity as a device that …

We present an advancement in applications of ultrafast optics in picosecond laser
ultrasonics-laser-induced comb-like coherent acoustic phonons are optically controlled in a …