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Pixelless infrared imaging device

Pixelless infrared imaging device

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© Canadian Crown copyright
Published

A new concept for infrared imaging using a pixelless photon frequency up-conversion device together with a CCD array is presented. The concept is applicable to wavelengths longer than the CCD response range (longer than about 1.1 µm). Preliminary imaging results using a quantum well infrared photodetector integrated with a light emitting diode are also presented.

Inspec keywords: infrared imaging; optical frequency conversion; CCD image sensors; infrared detectors

Other keywords: CCD array; photon frequency up-conversion device; light emitting diode; pixelless infrared imaging device; quantum well infrared photodetector

Subjects: Nonlinear optics and devices; Other field effect integrated circuits; Image sensors; Optical harmonic generation, frequency conversion, parametric oscillation and amplification; Detection of radiation (bolometers, photoelectric cells, i.r. and submillimetre waves detection)

References

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      • H.C. Liu , J. Li , Z.R. Wasilewski , M. Buchanan . Integrated quantum well intersubband photodetector and light emittingdiode. Electron. Lett. , 832 - 833
    2. 2)
      • B.F. Levine , S.D. Gunapala , J.M. Kuo , S.S. Pei , S. Hui . Normal incidence hole intersubband absorption long wavelength GaAs/AlxGa1-xquantum well infrared photodetectors. Appl. Phys. Lett. , 1864 - 1866
    3. 3)
      • Y.H. Wang , S.S. Li , J. Chu , P. Ho . An ultra-low dark current p-type strained-layer InGaAs/InAlAs quantumwell infrared photodetector with background limited performance. Appl. Phys. Lett. , 727 - 729
    4. 4)
      • B.F. Levine . Quantum well infrared photodetectors. J. Appl. Phys. , R1 - R81
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