Semiconductor photovoltaic diffractive resonant optical...

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H01L 31/042 (2006.01) H01L 27/146 (2006.01) H01L 31/0296 (2006.01) H01L 31/0352 (2006.01) H01L 31/052 (2006.01) H01L 31/09 (2006.01) H01L 31/101 (2006.01) H01L 31/103 (2006.01)

Patent

CA 2141966

An infrared detector cell includes a plurality of uniformly spaced linear segments, which make up an optical grating. Each segment is selectively doped across its width to form a photovoltaic diode. The linear segments are ohmically connected between electrical conductors to produce a single cell detection signal. The cell comprises a diffractive resonant optical cavity. An array of cells can produce an infrared image. Cell configurations are illustrated for receiving both single dimension and linearly polarized radiation and two-dimension unpolarized radiation.

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