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

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.

Citation Download Citation

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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