Northrop Grumman Systems Corporation

University of Southern California

Vladan Jankovic

Jennifer Anne Dionne

Mark Lawrence

Luke Sweatlock

Brian Keith Baum

Hadiseh Alaeian

Harry A Atwater

Ryan Morrow Briggs

Michael T Barako

Andrea Martin Armani

Mark William Knight

Imogen Pryce

James Ma

Kenneth Diest

Michelle L Povinelli

Ahmed M Morsy

Mingkun Chen

Philip W C Hon

Shao-Hua Wu

Luke A Sweatlock

Philip WC Hon

Systems and methods are provided for protecting a temperature sensitive object. A system includes a temperature sensitive object and a thermal control material in thermal communication with the temperature sensitive object. The thermal control material has an emissivity that varies as a function of temperature, and includes a substrate comprising a first surface comprising one of a photonic crystal, a metamaterial, a metasurface, and a multilayer film, a solid state phase change material in contact with the surface, and a reflective thin film material at one of a second surface of the substrate, at a surface of the solid state phase change material, and on an opposite side of an optical cavity from the substrate.

Thermal control material

Systems and methods are provided for providing a passively switched light source. An integrated optical component includes a photonic material and a phase change material in direct contact with the photonic material. A light source provides light into the integrated optical component. The light interacts with the phase change material such that an index of refraction of the phase change material depends on the intensity of the light within the integrated optical component as to provide a passive change to a parameter of the integrated optical component.

Passive switching in integrated optical components

A device includes a light adjustment apparatus having at least one material having a dielectric permittivity, the at least one material to affect the flow of light, wherein the light adjustment apparatus includes a tunable material to enable adjustment of the dielectric permittivity of the at least one material.

Dynamically tunable materials for parity-time symmetric electro-optical devices

A device includes a light adjustment apparatus having a first material and a second material. The first material includes a first real dielectric permittivity and a positive imaginary dielectric permittivity. The second material includes a second real dielectric permittivity and a negative imaginary dielectric permittivity. The first and second materials affect the flow of light. The light adjustment apparatus includes a tunable material to enable adjustment of the dielectric permittivity of the respective materials.

Systems and methods are provided for modulating light of a wavelength of interest. The modulator assembly includes a plasmonic layer that supports surface plasmon polaritons at the wavelength of interest and a layer of solid-state phase change material having a first phase in which it is substantially transparent to light of the wavelength of interest and a second phase in which it is substantially opaque to light of the wavelength of interest. A control mechanism is configured to alter the phase of the solid-state phase change material between the first phase and the second phase. Each of the plasmonic layer and the layer of solid-state phase change material are configured as to provide a plasmonic mode of transmission for light of the wavelength of interest.

Plasmonic modulator incorporating a solid-state phase change material

Growing community of inventors

Los Angeles, CA, United States of America

Vladan Jankovic