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Type-II InAs/GaSb superlattices lead to new IR camera

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A novel IR camera based on Type-II InAs/GaSb superlattices produces images with much higher resolution than previous IR cameras could produce. The camera’s long-wavelength IR (LWIR) focal plane array can provide IR images in the dark and offers a sixteenfold increase in the number of pixels in the image, according to the researchers at Northwestern University who created it. Existing LWIR cameras are based on mercury cadmium telluride materials; the Type-II superlattice is mercury-free and can be deposited with better uniformity, increasing yield, reducing camera cost and...Read full article

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