Recent years have witnessed a much broader use of Brillouin inelastic light-scattering
spectroscopy for the investigation of phonons and magnons in novel materials …

Solar light is widely recognized as one of the most valuable renewable energy sources for
the future. However, the development of solar‐energy technologies is severely hindered by …

Understanding and controlling vibrations in condensed matter is emerging as an essential
necessity both at fundamental level and for the development of a broad variety of …

The engineering of optical and acoustic material functionalities via construction of ordered
local and global architectures on various length scales commensurate with and well below …

The design and fabrication of phononic crystals (PnCs) hold the key to control the
propagation of heat and sound at the nanoscale. However, there is a lack of experimental …

Phononic crystals (PnCs) are capable of manipulating the flow of elastic energy through
their periodic structures and have emerged as a promising field in the last two decades …

We investigate experimentally and theoretically the acoustic phonon propagation in two-
dimensional phononic crystal membranes. Solid-air and solid-solid phononic crystals were …

Nanomechanics, nanoacoustics, and nanophononics refer to the engineering of acoustic
phonons and elastic waves at the nanoscale and their interactions with other excitations …

Ultrahigh-frequency acoustic-phonon resonators usually require atomically flat interfaces to
avoid phonon scattering and dephasing, leading to expensive fabrication processes, such …

Layered nanomaterials fascinate researchers for their mechanical, barrier, optical, and
transport properties. Nacre is a biological example thereof, combining excellent mechanical …