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Proceedings Paper

Tunable liquid crystal filters including variable FWHM control
Author(s): Paul A. Searcy; Patrick Wagner; Robert A. Ramsey; John Powell; Thomas G. Baur
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Paper Abstract

Meadowlark Optics has successfully built and demonstrated a liquid crystal based tunable filter with novel FWHM tunability. This allows separate control over both the location of a narrow spectral bandpass and the width of the bandpass function. This non-mechanical, imaging filter thus enables random access of the visible to near IR spectrum and also controlling the specificity of the transmitted light. We will discuss both the relative trade-offs in this filter design space and present data from functional units.

Paper Details

Date Published: 24 April 2010
PDF: 10 pages
Proc. SPIE 7672, Polarization: Measurement, Analysis, and Remote Sensing IX, 76720F (24 April 2010); doi: 10.1117/12.852431
Show Author Affiliations
Paul A. Searcy, Meadowlark Optics, Inc. (United States)
Patrick Wagner, Meadowlark Optics, Inc. (United States)
Robert A. Ramsey, Meadowlark Optics, Inc. (United States)
John Powell, Meadowlark Optics, Inc. (United States)
Thomas G. Baur, Meadowlark Optics, Inc. (United States)

Published in SPIE Proceedings Vol. 7672:
Polarization: Measurement, Analysis, and Remote Sensing IX
David B. Chenault; Dennis H. Goldstein, Editor(s)

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