Thermally Reconfigurable Meta-Optics
Abstract
Metasurfaces are two-dimensional nanostructures that allow unprecedented controlof light through engineering the amplitude, phase, and polarization across meta-atomresonators. Adding tunability to metasurface components would boost their potential andunlock a vast array of new application possibilities such as dynamic beam steering, tunablemetalenses, and reconfigurable meta-holograms, to name a few.We present here high-indexmeta-atoms, resonators, and metasurfaces reconfigured by thermal effects, across the nearto mid-infrared spectral ranges. We study thermal tunability in group IV and group IVVIsemiconductors, as well as in phase-transition materials, and demonstrate large dynamicresonance frequency shifts accompanied by significant amplitude and phase modulationin metasurfaces and resonators. We highlight the importance of high-Q resonances alongwith peak performance of thermal and thermo-optic effects, for efficient and practical reconfigurabledevices. This paper paves the way to efficient high-Q reconfigurable and activeinfrared metadevices.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 10, 2020
- Accession Number
- AD1103529
Entities
People
- Christian Urban
- David Higgs
- Hamid T Chorsi
- Hayden A. Evans
- Iiya Valmianski
- Ivan K. Schuller
- Javier Del Valle Grande
- Jon A Schuller
- Juan Trastoy
- Mark W. Knight
- Nikita A. Butakov
- Paul Y. Wang
- Philip W. Hon
- Prasad P. Iyer
- Tomer Lewi
- Yoav Kalcheim
Organizations
- University of California