Capacitive bolometer with improved responsivity

Details Capacitive bolometer with improved responsivity Capacitive bolometer with improved responsivity

1986-10-23

1988-05-17

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503384, H01L 3702

Patent

active

047452781

ABSTRACT:
The capacitive bolometer comprises a detection capacitor having a first-order phase transition ferroelectric material between two electrodes. The detection capacitor operates during a detection step and a subsequent readout step. During the detection step, a preselected electric field is applied to the detection capacitor to maximize its sensitivity to temperature. A second electric field is applied to the capacitor during the readout step in order to increase responsivity of the detection cell. The detection cells according to the invention can be assembled into disclosed detection arrays.

REFERENCES:
patent: 3073974 (1959-06-01), Hoh
patent: 3243687 (1966-03-01), Hoh
patent: 3604933 (1971-09-01), Cross et al.
patent: 3983395 (1976-09-01), Kim
patent: 4080532 (1978-03-01), Hopper
patent: 4162402 (1979-07-01), Hopper
patent: 4250384 (1981-02-01), Pulvari

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