Wavelength conversion device with avalanche multiplier

Details Wavelength conversion device with avalanche multiplier Wavelength conversion device with avalanche multiplier

H - Electricity

01

L

H01L 31/14 (2006.01) G02B 23/12 (2006.01) G02F 2/02 (2006.01) H01L 31/18 (2006.01) H04N 5/33 (2006.01)

Patent

CA 2447828

A wavelength conversion device includes a photodetector for generating a photocurrent in response to the detection of radiation at a first wavelength.. An avalanche multiplier amplifies the signal photocurrent and feeds this to a light emitting element that produces radiation at a second wavelength shorter than the first wavelength and corresponding to the detected radiation at the first wavelength. The components are assembled together in an integrated stacked arrangement either by epitaxial growth or wafer fusion of the individual components. The device is useful as an image intensifier or thermal imaging device.

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