Hale, LL;
Wang, Z;
Law, S;
Brener, I;
Mitrofanov, O;
(2022)
THz Aperture Near-Field Spectroscopy of Dirac Plasmons in Topological Insulator Bi2Se3.
In:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
IEEE: Delft, Netherlands.
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Abstract
We map the dispersion relation in ribbon gratings of topological insulator Bi2Se3 using both far-field and aperture-type near-field THz spectroscopy methods. The results are consistent with theoretical predictions of coupling between the optical phonon and massless Dirac plasmons.
| Type: | Proceedings paper |
|---|---|
| Title: | THz Aperture Near-Field Spectroscopy of Dirac Plasmons in Topological Insulator Bi2Se3 |
| Event: | 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) |
| Dates: | 28 Aug 2022 - 2 Sep 2022 |
| ISBN-13: | 9781728194271 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/IRMMW-THz50927.2022.9895794 |
| Publisher version: | https://doi.org/10.1109/IRMMW-THz50927.2022.989579... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Couplings, Spectroscopy, Phonons, Apertures, Plasmons, Polaritons, Optical coupling |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10158200 |
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