Paper
1 October 2007 Discrete adaptive zone light elements (DAZLE): a new approach to adaptive imaging
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Abstract
New advances in Liquid Crystal Spatial Light Modulators (LCSLM) offer opportunities for large adaptive optics in the midwave infrared spectrum. A light focusing adaptive imaging system, using the zero-order diffraction state of a polarizer-free liquid crystal polarization grating modulator to create millions of high transmittance apertures, is envisioned in a system called DAZLE (Discrete Adaptive Zone Light Elements). DAZLE adaptively selects large sets of LCSLM apertures using the principles of coded masks, embodied in a hybrid Discrete Fresnel Zone Plate (DFZP) design. Issues of system architecture, including factors of LCSLM aperture pattern and adaptive control, image resolution and focal plane array (FPA) matching, and trade-offs between filter bandwidths, background photon noise, and chromatic aberration are discussed.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert L. Kellogg and Michael J. Escuti "Discrete adaptive zone light elements (DAZLE): a new approach to adaptive imaging", Proc. SPIE 6714, Adaptive Coded Aperture Imaging and Non-Imaging Sensors, 67140H (1 October 2007); https://doi.org/10.1117/12.738413
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KEYWORDS
Diffraction

Mid-IR

Staring arrays

Liquid crystals

Polarization

Spatial light modulators

Diffraction gratings

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