Title :
Infrared Liquid Crystal Tunable Frequency Selective Surfaces
Author :
Bossard, J.A. ; Li, L. ; Werner, D.H. ; Khoo, I.C.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA
Abstract :
In this paper, micron-scale metallodielectric and all-dielectric frequency selective surfaces (FSS) are synthesized with a liquid crystal (LC) superstate to exhibit broadband tunable filter characteristics at mid-infrared (IR) wavelengths. The low loss and birefringence properties of LC span the visible to far-IR spectrum, providing potential for the development of a new class of infrared/optical switches
Keywords :
dielectric materials; frequency selective surfaces; optical filters; all-dielectric frequency selective surfaces; birefringence properties; broadband tunable filter characteristics; far-IR spectrum; infrared liquid crystal tunable frequency selective surfaces; infrared switch; liquid crystal superstate; micron-scale metallodielectric; mid-infrared wavelengths; optical switch; Band pass filters; Dielectric liquids; Dielectric substrates; Frequency selective surfaces; Genetic algorithms; Geometrical optics; Liquid crystals; Optical filters; Optical losses; Signal synthesis;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711633
