This paper describes two sensors built on existing Nichols polarimetric sensor designs that provide Stokes four-vector polarimetric data on static targets. The midwave infrared (MWIR) sensor uses a Raytheon-Amber AE-173 indium antimonide (InSb) 256/spl times/256 focal plane array to provide data in the 3-5 micron waveband. The long-wave infrared (LWIR) sensor uses a Raytheon-Amber AE-173 mercury cadmium telluride (MCT) 256/spl times/256 focal plane array to provide data in the 8-10 micron waveband. To the extent possible, these sensors have been designed to use the same mechanical, optical, and electronics hardware. Each sensor uses a custom closed-cycle dewar, which contains the focal plane and an optics package, maintained at a constant temperature. The optics package contains a motorized eight-position filter wheel, a linear polarizer, and a motorized rotating 1/4 /spl lambda/ waveplate. A warm 100 mm F#2 refractive telescope is external to the dewar. A customized set of electronics is used to control the sensor and acquire and process the polarimetric image data in near real-time.


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    Titel :

    Mid-wave and long-wave infrared polarimetric phenomenology sensors


    Beteiligte:
    Barnes, H. (Autor:in) / Burke, P. (Autor:in) / Caneer, A. (Autor:in) / Dunbar, J. (Autor:in) / Jones, M.W. (Autor:in) / Lewis, P. (Autor:in) / Mohon, N. (Autor:in)


    Erscheinungsdatum :

    01.01.1999


    Format / Umfang :

    640268 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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