Manipulation and Steering of Hyperbolic Surface Polaritons in Hexagonal Boron Nitride
Abstract
Hexagonal boron nitride (hBN) is a natural hyperbolic material that supports both volume‐confined hyperbolic polaritons and sidewall‐confined hyperbolic surface polaritons (HSPs). In this work, efficient excitation, control, and steering of HSPs are demonstrated in hBN through engineering the geometry and orientation of hBN sidewalls. By combining infrared nanoimaging and numerical simulations, the reflection, transmission, and scattering of HSPs are investigated at the hBN corners with various apex angles. It is also shown that the sidewall‐confined nature of HSPs enables a high degree of control over their propagation by designing the geometry of hBN nanostructures.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 13, 2018
- Source ID
- 10.1002/adma.201706358
Entities
People
- Andrea Alù
- Dimitri. N. Basov
- Kenji Watanabe
- Marta Pita‐vidal
- Michael M. Fogler
- Mykhailo Tymchenko
- Pablo Jarillo‐herrero
- Qiong Ma
- Siyuan Dai
- Takashi Taniguchi
- Yafang Yang
Organizations
- Air Force Office of Scientific Research
- Columbia University
- Gordon and Betty Moore Foundation
- Massachusetts Institute of Technology
- National Institute for Materials Science
- Office of Naval Research
- University of California, San Diego
- University of Texas at Austin