Embedded Files
FSS Unit Cells
Scanning electron microscope (SEM) images and measured transmission spectra (blue lines) of microfabricated IR metallodielectric FSS filters with fractal cross-dipole, fractal square-patch, and GA-synthesized metallic geometries. Strong band rejection greater than 10 dB is observed at designed IR wavelengths between 15 and 75 µm. PMM-simulated transmission spectra with metallic and dielectric losses are included as red circles.
Interest in controlling wavelengths of light reflected and transmitted by a thin planar surface.
Frequency Selective Surface (FSS) techniques developed for microwave applications can be scaled to micron dimensions to achieve infrared filtering from a single metallodielectric layer.
MDPCs designed using Fractal and Genetic Algorithm techniques produce multiple strong stopbands at far-IR wavelengths.
Success in the far-IR has prompted efforts to scale down to shorter wavelengths and pursue exciting technologies such as Negative Index Materials (NIM) and All-dielectric Frequency Selective Surfaces (DFSS).
Relevant Publications
Relevant Publications
Dual-band infrared single-layer metallodielectric photonic crystals
A Novel Design Methodology for Reconfigurable Frequency Selective Surfaces Using Genetic Algorithms
A Novel Concept for Reconfigurable Frequency Selective Surfaes Based on Silicon Switches
Multiband All-Dielectric Frequency Selective Surface Filters for the Mid-Infrared
Single-layer Metallodielectric Nanostructures as Dual-Band Midinfrared Filters
Metamaterials with custom emissivity polarization in the near-infrared
Metamaterials with angle selective emissivity in the near-infrared
Near-ideal optical metamaterial absorbers with super-octave bandwidth
Page updated
Report abuse