Abstract

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

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

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.

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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.

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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

Integration of a waveguide resonator can reduce an aperture of a grating coupler to enable its utilization in a channel waveguide. Resultantly obtained coupling characteristics such as selectivity or controllability are attractive for various applications including a compact WDM light source and micro-optic beam steering.

Abstract