Title :
Suppression of chromatic aberrations based on a metamaterial with anomalous dispersion
Author :
Costa, João T. ; Silveir, Mário G.
Author_Institution :
Dept. de Eng. Electrotec., Univ. de Coimbra, Coimbra, Portugal
Abstract :
In this work we show that the chromatic aberrations inherent to optical glass lenses may be eliminated for all the wavelengths of the visible spectrum by coating a standard glass lens with a nanowire spatially dispersive metamaterial characterized by anomalous frequency dispersion. A finite-difference frequency-domain (FDFD) based method is proposed to solve the Maxwell-Equations in the presence of spatially dispersive bodies.
Keywords :
Maxwell equations; aberrations; coatings; finite difference methods; lenses; metamaterials; optical glass; FDFD; Maxwell equations; anomalous dispersion; anomalous frequency dispersion; chromatic aberration suppression; chromatic aberrations; coating; finite-difference frequency-domain; nanowire spatially dispersive metamaterial; optical glass lenses; spatially dispersive bodies; standard glass lens; visible spectrum; Dispersion; Glass; Lenses; Metamaterials; Optical refraction; Wires;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348073
