Raytheon Company

Raytehon Company

Jeffery J Puschell

David T Chang

Deborah J Kirby

Terence J De Lyon

James H Schaffner

Daniel J Gregoire

Metin S Mangir

Frederic P Stratton

Michael Aidan Gritz

Jar Jueh Lee

A conformal coherent wideband antenna coupled IR detector array included a plurality of unit cells each having a dimension that includes an antenna for focusing radiation onto an absorber element sized less than the dimension. In one embodiment, the absorber element may be formed of a mercury cadmium telluride alloy. According to a further embodiment, the antenna array may be fabricated using sub-wavelength fabrication processes.

Nano-antenna for wideband coherent conformal IR detector arrays

In one embodiment, a multiband infrared (IR) detector array includes a metallic surface having a plurality of periodic resonant structures configured to resonantly transmit electromagnetic energy in distinct frequency bands. A plurality of pixels on the array each include at least first and second resonant structures corresponding to first and second wavelengths. For each pixel, the first and second resonant structures have an associated detector and are arranged such that essentially all of the electromagnetic energy at the first wavelength passes through the first resonant structure onto the first detector, and essentially all of the electromagnetic energy at the second wavelength passes through the second resonant structure onto the second detector. In one embodiment, the resonant structures are apertures or slots, and the IR detectors may be mercad telluride configured to absorb radiation in the 8-12 &#x3bc;m band. Detection of more than two wavelengths may be achieved by proper scaling. A method of forming an IR detector array is also disclosed.

Multi-band sub-wavelength IR detector having frequency selective slots and method of making the same

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Solvang, CA, United States of America

Jeffery J Puschell