Antenna-coupled infrared focal plane array

    Authors

    F. J. Gonzalez; J. L. Porter;G. D. Boreman

    Comments

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    Abbreviated Journal Title

    Microw. Opt. Technol. Lett.

    Keywords

    IRFPA; focal plane array; antenna-coupled detectors; microbolometers; ROIC; MICROBOLOMETERS; Engineering, Electrical & Electronic; Optics

    Abstract

    Uncooled bolometric detectors used in infrared-imaging systems have slow time constants (similar to 15 ms), which makes them impractical for fast-frame-rate applications. Antenna-coupled microbolometers are fast uncooled detectors with good sensitivity and directivity, and they can be polarization and wavelength selective. These detectors have collection areas in the order of 10 mu m(2), which are too small for infrared imaging systems where a typical pixel area ranges from 20 X 20 mu m(2) to 50 X 50 mu m(2). To solve this problem, 2D arrays of antenna-coupled detectors, which can be used as pixels in infrared-imaging systems, are fabricated. In this paper, antenna-coupled pixels are fabricated on a commercial readout integrated circuit (ROIC), resulting in the first antenna-coupled infrared focal plane array (IR-FPA). Measurements made on this antenna-coupled infrared focal plane array show that the integration of antenna-coupled detectors to a commercial ROIC is possible. (c) 2005 Wiley Periodicals Inc.

    Journal Title

    Microwave and Optical Technology Letters

    Volume

    48

    Issue/Number

    1

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    165

    Last Page

    166

    WOS Identifier

    WOS:000234070500049

    ISSN

    0895-2477

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