Northrop Grumman Systems Corporation

University of Southern California

Mark William Knight

Lakshminarayanan Ravi Narasimhan

Stephanie Roxane Sandor-Leahy

Jesse B Tice

Michael T Barako

Vladan Jankovic

Luke Sweatlock

Ahmed M Morsy

Shao-Hua Wu

Philip W C Hon

Mingkun Chen

Michelle L Povinelli

Patrick W Shindo

Connor Limburg

Luke A Sweatlock

Philip WC Hon

A method of making a photonic integrated circuit (PIC) is provided. The method comprises depositing a functional resist material layer over a substrate, disposing and pressing a stamp with a plurality of nanopatterns into the functional resist material for a period of time, and removing the stamp from the functional resist material to provide nanofeatures that are inverted versions of the nanopatterns, wherein the nanofeatures form one or more optical elements.

Nanoimprinted photonic integrated circuits

An aircraft skin coating assembly for an aircraft. The coating assembly includes a primer layer deposited on the aircraft skin, an optical stop-etch layer deposited on the primer layer that is reflective at a predetermined wavelength, a coating stack-up deposited on the optical etch-stop layer that provides performance features for the aircraft, and a sealant layer deposited on the stack-up. When a laser coating removal process employing a laser beam is used to remove the coating stack-up for replacement, the stop-etch layer reflects the laser beam to prevent it from penetrating and possibly damaging the aircraft skin.

Multi-functional layer for stop etch in laser coating removal

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

Growing community of inventors

El Segundo, CA, United States of America

Mark William Knight