Elecrtrically Reconfigurable Infrared Iii-V Phased Array Metasurfaces
Abstract
The possibility of engineering electromagnetic phase at subwavelength dimensions hasled to “metasurfaces” that provide unprecedented control of electromagnetic waves. The ability toelectrically tune this phase would unlock the potential of metasurfaces and establish disruptivenew paradigms in reconfigurable optics. The objective of this proposal is to construct first-everfully reconfigurable metasurfaces by exploiting voltage-controlled, free-carrier based tuning ofmid-infrared resonances in III-V semiconductor resonators. The approach is to (1) grow InAsbasedheterojunction devices capable of order unity and larger refractive index modulationsacross micron length scales; (2) demonstrate ultra-wide wavelength tuning of individual micronscale“Mie resonators” using high spatial resolution infrared spectroscopy; and (3) design anddemonstrate low-loss electrically reconfigurable phased-array metasurfaces with high diffractionefficiency.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 05, 2016
- Source ID
- FA95501610393
Entities
People
- Jon A Schuller
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of California, Santa Barbara