Tunable liquid crystal filters including variable FWHM control

Paul A. Searcy; Patrick Wagner; Robert A. Ramsey; John Powell; Thomas G. Baur

doi:10.1117/12.852431

24 April 2010 Tunable liquid crystal filters including variable FWHM control

Paul A. Searcy, Patrick Wagner, Robert A. Ramsey, John Powell, Thomas G. Baur

Author Affiliations +

Proceedings Volume 7672, Polarization: Measurement, Analysis, and Remote Sensing IX; 76720F (2010) https://doi.org/10.1117/12.852431
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

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Paul A. Searcy, Patrick Wagner, Robert A. Ramsey, John Powell, and Thomas G. Baur "Tunable liquid crystal filters including variable FWHM control", Proc. SPIE 7672, Polarization: Measurement, Analysis, and Remote Sensing IX, 76720F (24 April 2010); https://doi.org/10.1117/12.852431

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