Infrared Optical Metasurfaces in the Nonlinear, Ultra-Fast, and Quantum Regimes
Abstract
This project will involve 8 thrust areas: 1. Design, fabricate, and experimentally verify of the concept of a plasmonic metajunction. Plasmonic metasurfaces will be fabricated on top of graphene-hBN heterostructures and optically characterized.2. Demonstrate an active quantum Bragg grating for mid-IR graphene plasmons that relies on the chemical potential patterning. NSOM tip will be used to launch GSPPs through the active grating. 3. Develop of a graphene detector based on a plasmonic meta-junction. Based on thrusts 1 and 2, a graphene-integrated plasmonic metasurface will be designed that co-locates the peak of the built-in electric field in graphene and the peak of optical energy concentration to achieve the highest possible detector responsivity. 4. Demonstrate asymmetric refraction with all-dielectric metasurfaces. Si-based bianisotropic metasurfaces will be fabricated locally, concentrating on super-wavelength metasurfaces that are predicted to exhibit one-way second harmonics generation. 5. Demonstrate second and third harmonic generation from high-Q all-dielectric nonlinear metasurfaces, including asymmetric harmonic generation. Simulation from Thrust 3 will be used to optimize the efficiency of nonlinear second and third harmonic generation from all-Si and GaAs metasurfaces. 6. Demonstrate the sum and difference frequency generation using plasmonic ENZs and graphene-integrated metasurface. The spacer between the grating array and the metal backplane on the fabricated structures is going to be GaAs. 7. Demonstrate temporal amplitude/phase shaping of short mid-infrared laser pulses using the concept of an active plasmonic metasurface. The structure will be redesigned to increase the field-effect electric field by an order of magnitude, and use an ultra-fast MCT detector to demonstrate intensity and phase shaping of a single laser pulse. 8. Investigate a novel optical rectification process in graphene-integrated metasurfaces: the plasmo-electric effect. Highly resonant plasmonic structures will be fabricated to investigate charge distribution in graphene in response to optical illumination of the slightly off-resonant metasurfaces.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 03, 2017
- Source ID
- N000141712161
Entities
People
- Gennady Shvets
Organizations
- Cornell University
- Office of Naval Research
- United States Navy