Journal article
Reconfigurable infrared hyperbolic metasurfaces using phase change materials
Nature communications, Vol.9(1), 4371
10/22/2018
DOI: 10.1038/s41467-018-06858-y
PMCID: PMC6197242
PMID: 30349033
Abstract
Metasurfaces control light propagation at the nanoscale for applications in both free-space and surface-confined geometries. However, dynamically changing the properties of metasurfaces can be a major challenge. Here we demonstrate a reconfigurable hyperbolic metasurface comprised of a heterostructure of isotopically enriched hexagonal boron nitride (hBN) in direct contact with the phase-change material (PCM) single-crystal vanadium dioxide (VO2). Metallic and dielectric domains in VO2 provide spatially localized changes in the local dielectric environment, enabling launching, reflection, and transmission of hyperbolic phonon polaritons (HPhPs) at the PCM domain boundaries, and tuning the wavelength of HPhPs propagating in hBN over these domains by a factor of 1.6. We show that this system supports in-plane HPhP refraction, thus providing a prototype for a class of planar refractive optics. This approach offers reconfigurable control of in-plane HPhP propagation and exemplifies a generalizable framework based on combining hyperbolic media and PCMs to design optical functionality.
Details
- Title: Subtitle
- Reconfigurable infrared hyperbolic metasurfaces using phase change materials
- Creators
- T G Folland - Vanderbilt UniversityA. Fali - University of GeorgiaS. T. White - Vanderbilt UniversityJ. R. Matson - Vanderbilt UniversityS. Liu - Kansas State UniversityN. A. Aghamiri - University of GeorgiaJ. H. Edgar - Kansas State UniversityR. F. Haglund - Vanderbilt UniversityY. Abate - University of GeorgiaJ. D. Caldwell - Vanderbilt University
- Resource Type
- Journal article
- Publication Details
- Nature communications, Vol.9(1), 4371
- Publisher
- Springer Nature
- DOI
- 10.1038/s41467-018-06858-y
- PMID
- 30349033
- PMCID
- PMC6197242
- ISSN
- 2041-1723
- eISSN
- 2041-1723
- Number of pages
- 7
- Grant note
- CMMI 1538127; 1553251 / National Science Foundation; National Science Foundation (NSF) FA9559-16-1- 0172 / Air Force Office of Scientific Research (AFOSR); United States Department of Defense
- Language
- English
- Date published
- 10/22/2018
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984428803002771
Metrics
36 Record Views