Researchers have captured the first direct, momentum-resolved evidence that certain lattice vibrations carry measurable ...

Acoustic frequency combs organize sound or mechanical vibrations into a series of evenly spaced frequencies, much like the teeth on a comb. They are the acoustic counterparts of optical frequency ...

First, in hBN, phonon-polaritons possess a significantly higher density of states and can propagate within the bulk, behaving like deep-subwavelength light rays that bounce back and forth between ...

Gao Peng's research group at the International Center for Quantum Materials, School of Physics, Peking University, has developed a breakthrough method for visualizing interfacial phonon transport with ...

Andrew N. Cleland receives funding from various US federal funding agencies. He is a fellow of the American Physical Society (APS) and the American Association for the Advancement of Science. He is ...