Title :
Tunable infrared resonance spectra of split ring resonators embedded in a liquid crystal
Author :
Atorf, B. ; Muhlenbernd, Holger ; Zentgraf, Thomas ; Kitzerow, H.
Author_Institution :
Center for Optoelectron. & Photonics, Univ. of Paderborn, Paderborn, Germany
Abstract :
Two-dimensional arrays of sub-μm size split ring resonators are embedded in a liquid crystal and the infrared resonance spectra are measured. The results indicate that the wave number of the resonances can be shifted by 30-80 cm-1 owing to realignment of the liquid crystal. The spectral shift depends on the mode, the polarization and the spectral region considered.
Keywords :
infrared spectra; light polarisation; liquid crystal devices; liquid crystals; optical arrays; optical materials; optical resonators; optical tuning; spectral line shift; liquid crystal realignment; mode region; polarization region; spectral region; spectral shift; sub-μm size split ring resonators; tunable infrared resonance spectra; two-dimensional arrays; wave number; wave number 30 cm-1 to 80 cm-1; Liquid crystals; Metamaterials; Optical ring resonators; Polarization; Refractive index; Substrates;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2013 7th International Congress on
Conference_Location :
Talence
Print_ISBN :
978-1-4799-1229-2
DOI :
10.1109/MetaMaterials.2013.6808995
