Abstract

A variable attenuator for high-powered IR beams, based on MEMS-controlled excitation of surface plasmon polaritons on suitably conducting surfaces is described. Materials choice determines the useful spectral band. Intensity variation over nine-orders is theoretically possible.

Abstract

Volumetric Imaging Efficiency (VIE) compares the compactness and capacity of an imager against the limit imposed by diffraction. This metric is used to compare optical technologies for low-volume imaging and show that a combination of metasurface lenses can surpass the VIE limits of conventional imagers.

Abstract

High radiance IRLEDs have been achieved, but much of the light created still remains in the device resulting in poor wall-plug efficiencies. Preliminary results presented here show increased light extraction by the addition of a 2D lens to the device, known as a metalens.

Abstract

This study reports on the integration of metasurfaces with microbolometers to provide spectral and/or polarized Long Wave Infrared selectivity. Metal antenna elements are in direct contact with Si_xGe_yO_1-x-y based microbolometers and modify the electrical/noise performance of the device in addition to engineering the electromagnetic response.

Abstract

Plasmonic and metamaterial systems are enabling to the generation, detection and conversion of single photons. We explore metasurface engineering for nonlinear response. A focus of our work is exploring novel materials systems that combine the functionality needed for nonlinear plasmonic metasurfaces and dynamic optical systems.

Abstract

Topological photonic structures in analogy to their electronic counterparts can provide new functionalities in nanophotonics through topological protection. We will discuss design, fabrication and optical response of such topological photonic structures composed of photonic crystals (PhC) in silicon-on-insulator (SOI) systems operating around 1550nm wavelength.

Abstract

Abstract

Semiconductor quantum wells underpin a great number of modern optoelectronics technologies. Here, we demonstrate directional photoluminescence arising from: 1) magnetic dipole transitions in layered two-dimensional hybrid organic-inorganic perovskite quantum wells and 2) phased array GaN quantum well metasurfaces.

Abstract

The multi-spectral sensing/imaging will provide unique intelligence in terms of spectrally resolved IR signature and/or “color” IR images. The novel printing/imprinting techniques enable development of large area, low cost IR detectors which can be mounted on various platforms efficiently with low SWaP requirements.

Abstract

We show that wave dynamics in nanostructured media can perform artificial neural computing, and artificial neural network can also be used to design nanophotonic media.

Abstract

Nonmagnetic nonreciprocal linear optical response is predicted for acoustically driven resonant waveguide gratings. In a narrow spectral range around the resonance the structure can be completely transparent for a light wave propagating in one direction and highly reflective in the opposite direction.

Abstract

The long-wave IR spectral region spanning ~3 to 13 μm contains spectral bands useful for many scientific and industrial applications. We discuss design, fabrication, and testing of example devices based on guided-mode resonant metamaterials.