Optically switchable photonic metasurfaces
- Centre for Photonic Metamaterials and Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (United Kingdom)
- QinetiQ Ltd., Cody Technology Park, Farnborough, Hampshire GU14 0LX (United Kingdom)
We experimentally demonstrate an optically switchable gallium-based metasurface, in which a reversible light-induced transition between solid and liquid phases occurring in a confined nanoscale surface layer of the metal drives significant changes in reflectivity and absorption. The metasurface architecture resonantly enhances the metal's “active plasmonic” phase-change nonlinearity by an order of magnitude, offering high contrast all-optical switching in the near-infrared range at low, μW μm{sup −2}, excitation intensities.
- OSTI ID:
- 22489136
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 8 Vol. 107; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solution processable and optically switchable 1D photonic structures
Electrically switchable metallic polymer metasurface device with gel polymer electrolyte
Journal Article
·
Thu Feb 22 23:00:00 EST 2018
· Scientific Reports
·
OSTI ID:1494093
Electrically switchable metallic polymer metasurface device with gel polymer electrolyte
Journal Article
·
Mon Jan 23 23:00:00 EST 2023
· Nanophotonics
·
OSTI ID:1975139