Far infrared photoconductor array

Details Far infrared photoconductor array Far infrared photoconductor array

2007-02-20

2007-02-20

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Including a radiant energy responsive gas discharge device

Reexamination Certificate

active

11062178

ABSTRACT:
Fabrication of far infrared photoconductor arrays, especially for low background astronomy, is particularly challenging due to arrays' relatively large pixel size, susceptibility to stray radiation, and the requirement for low bias levels. A hybrid-far infrared photoconductor array as presented, provides a system and method for the development of large-format far IR arrays. The hybrid-far infrared array is provided with a blocking layer, situated in between a detecting layer and a readout layer, which allows detection of far infrared signals without complications based on readout glow. In particular, the readout glow, detector heating, and thermal mismatch between the readout and the detecting layer are addressed by careful selection of the materials for the blocking layer. The blocking layer is provided with an array of conductive vias passing through the bulk of the blocking layer in order to efficiently transmit electrical signals between the detecting layer and the readout layer.

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