CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC12897 > Article
Presentation
13 March 2024 Extreme metaphotonics with ultra high-index chalcogenide topological insulators
Tomer Lewi
Author Affiliations +
Proceedings Volume PC12897, High Contrast Metastructures XIII; PC1289711 (2024) https://doi.org/10.1117/12.3003970
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
In nanophotonic, small mode volumes, narrow resonance linewidths and field enhancements, fundamentally scales with refractive index values and are key for many implementations involving light-matter interactions. Topological insulators (TI) are a class of insulating materials that host topologically protected surface states, some of which exhibit very high permittivity values. In this talk, I will present my group’s latest results on chalcogenide metaphotonics. I start by discussing Chalcogenide Bi2Te3 and Bi2Se3 TIs nanostructures. Using polarized far-field and near field Nanospectroscopy we reveal that Bi2Se3 nanobeams exhibit mid-infrared resonant modes with 2π phase shifts across the resonance. We further demonstrate that Bi2Te3 metasurfaces exhibit deep-subwavelength resonant modes utilizing their record high index value peaking at n~11. Finally we discuss how the anomalous thermo-optic effect in lead chalcogenide can be harnessed for implementing temperature invariant metasurfaces
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Tomer Lewi "Extreme metaphotonics with ultra high-index chalcogenide topological insulators", Proc. SPIE PC12897, High Contrast Metastructures XIII, PC1289711 (13 March 2024); https://doi.org/10.1117/12.3003970
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Chalcogenides
Dielectrics
Nanophotonics
Refractive index
FT-IR spectroscopy
Magnetism
Mid-IR
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top