Raytheon Company

Justin G A Wehner

Edward P Smith

George Paloczi

Scott M Johnson

Shelly J Mechery

An apparatus includes a focal plane array configured to receive incoming light. The apparatus also includes a readout integrated circuit configured to generate electrical signals based on the incoming light received by the focal plane array. The apparatus further includes a photonic integrated circuit positioned between the focal plane array and the readout integrated circuit. The photonic integrated circuit is configured to receive the electrical signals and generate output optical signals based on the electrical signals. In some cases, the apparatus may include electrically-conductive vias electrically coupling the focal plane array and the readout integrated circuit, where at least some of the electrically-conductive vias may extend through the photonic integrated circuit. The focal plane array, the readout integrated circuit, and the photonic integrated circuit may form at least part of a monolithic structure.

Integrated photonic integrated circuit (PIC) and readout integrated circuit (ROIC) for high-speed data output from focal plane array

In a method embodiment, a method includes generating one or more first signals proportional to the position and intensity of photons within a first range of wavelengths and incident on a position sensing pixel of an array of position sensing pixels. The method further includes generating one or more second signals proportional to a number of photons within a second range of wavelengths and incident on an image sensing pixel of an array of image sensing pixels. The array of image sensing pixels is formed monolithically on the array of position sensing pixels.

Multi-band position sensitive imaging arrays

Multi-spectral filter elements and methods of formation are disclosed. Each multi-spectral filter element may include a plurality of sub-filters that are, in some embodiments, each adapted to respond to electromagnetic radiation within respective ones of a plurality of spectral bands. A method embodiment includes forming an optical cavity layer. Volume of the optical cavity layer can be reduced in at least N&#x2212;1 number of spatial regions. The reducing may include a number of selective removal steps equal to the binary logarithm function LogN. In this example, each spatial region corresponds to a respective one of the plurality sub-filters. The plurality of sub-filters include at least N sub-filters. In particular embodiments, the respective ones of the plurality of spectral bands may be at least partially discrete with respect to each other.

Multi-spectral super-pixel filters and methods of formation

A broadband radiation detector includes a first layer having a first type of electrical conductivity type. A second layer has a second type of electrical conductivity type and an energy bandgap responsive to radiation in a first spectral region. A third layer has the second type of electrical conductivity type and an energy bandgap responsive to radiation in a second spectral region comprising longer wavelengths than the wavelengths of the first spectral region. The broadband radiation detector further includes a plurality of internal regions. Each internal region may be disposed at least partially within the third layer and each internal region may include a refractive index that is different from a refractive index of the third layer. The plurality of internal regions may be arranged according to a regularly repeating pattern.

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Goleta, CA, United States of America

Justin G A Wehner