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Far-field excitation of single graphene plasmon cavities with ultracompressed mode volumes
Name
2002.00366.pdf
Description
Submitted version
Size
4.47 MB
Format
Adobe PDF
Checksum (MD5)
4a96c7f25366c2b41614a701f0c41754
Author(s)
Epstein, Itai
Alcaraz, David
Huang, Zhiqin
Pusapati, Varun-Varma
Hugonin, Jean-Paul
Kumar, Avinash
Deputy, Xander M
Khodkov, Tymofiy
Rappoport, Tatiana G
Hong, Jin-Yong
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Version
Original manuscript
Abstract
© 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works Acoustic graphene plasmons are highly confined electromagnetic modes carrying large momentum and low loss in the mid-infrared and terahertz spectra. However, until now they have been restricted to micrometer-scale areas, reducing their confinement potential by several orders of magnitude. Using a graphene-based magnetic resonator, we realized single, nanometer-scale acoustic graphene plasmon cavities, reaching mode volume confinement factors of ~5 × 1010. Such a cavity acts as a mid-infrared nanoantenna, which is efficiently excited from the far field and is electrically tunable over an extremely large broadband spectrum. Our approach provides a platform for studying ultrastrongcoupling phenomena, such as chemical manipulation via vibrational strong coupling, as well as a path to efficient detectors and sensors operating in this long-wavelength spectral range.
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
10.1126/SCIENCE.ABB1570
