Presentation
17 March 2023 Van der Waals materials for nanophotonic applications
Author Affiliations +
Abstract
While high index dielectrics and plasmonics offer many opportunities for research and techonology in the field of nanophotonics, 2D materials can expand this potential in the visible and near-infrared due to high refractive indices, a large range of transparency windows, and new fabrication possibilities due to van der Waals adhesion to any substrate. We extract dielectric constants of 11 layered materials including TMDs, III-VI semiconductors, and magnetics. We fabricate nanoantennas and observe Mie resonances as well as strong coupling of TMD excitons and anapole modes with Rabi splittings of 140 meV. We also observe room temperature Purcell enhancement of WSe2 monolayer emission and low temperature formation of single photon emitters with enhanced quantum efficiencies. Due to weak adhesion to the substrate, we employed an AFM tip in the repositioning of dimer nanoantennas to form ultra-small hotspots enabling optical trapping of quantum emitters with Purcell factors above 150.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Panaiot G. Zotev, Yue Wang, Toby Severs Millard, Daniel Andres-Penares, Luca Sortino, Nic Mullin, Donato Conteduca, Mauro Brotons-Gisbert, Sam Randerson, Jamie Hobbs, Brian Gerardot, Thomas F. Krauss, and Alexander I. Tartakovskii "Van der Waals materials for nanophotonic applications", Proc. SPIE PC12423, 2D Photonic Materials and Devices VI, (17 March 2023); https://doi.org/10.1117/12.2647549
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KEYWORDS
Nanophotonics

Nanoantennas

Dielectrics

Refractive index

Silicon

Single photon

Transition metals

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