TY - GEN CY - Delft, Netherlands TI - THz Aperture Near-Field Spectroscopy of Dirac Plasmons in Topological Insulator Bi2Se3 SN - 2162-2027 PB - IEEE ID - discovery10158200 N2 - 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. AV - public KW - Couplings KW - Spectroscopy KW - Phonons KW - Apertures KW - Plasmons KW - Polaritons KW - Optical coupling Y1 - 2022/09/26/ A1 - Hale, LL A1 - Wang, Z A1 - Law, S A1 - Brener, I A1 - Mitrofanov, O UR - https://doi.org/10.1109/IRMMW-THz50927.2022.9895794 N1 - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions. ER -