A single-mode phononic wire
Abstract
Photons and electrons transmit information to form complex systems and networks. Phonons on the other hand, the quanta of mechanical motion, are often considered only as carriers of thermal energy. Nonetheless, their flow can also be molded in fabricated nanoscale circuits. We design and experimentally demonstrate wires for phonons that transmit information with little loss or scattering across a chip. By patterning the surface of a silicon chip, we completely eliminate all but one channel of phonon conduction. We observe the emergence of low-loss standing waves in millimeter long phononic wires that we address and cool optically. Coherent transport and strong optical coupling to a phononic wire enables new phononic technologies to manipulate information and energy on a chip.
Cite
@article{arxiv.1711.00847,
title = {A single-mode phononic wire},
author = {Rishi N. Patel and Zhaoyou Wang and Wentao Jiang and Christopher J. Sarabalis and Jeff T. Hill and Amir H. Safavi-Naeini},
journal= {arXiv preprint arXiv:1711.00847},
year = {2018}
}
Comments
21 pages, 4+10 figures