Influence of fabrication accuracies of metal-dielectric layered flat lenses on their imaging properties

Tomasz Stefaniuk; Rafal Kotynski; Grzegorz Nowak; Tomasz Szoplik

doi:10.1117/12.858004

29 April 2010 Influence of fabrication accuracies of metal-dielectric layered flat lenses on their imaging properties

Tomasz Stefaniuk, Rafal Kotynski, Grzegorz Nowak, Tomasz Szoplik

Proceedings Volume 7711, Metamaterials V; 77110G (2010) https://doi.org/10.1117/12.858004
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

We report on simulations of the imaging properties of metal-dielectric layered flat lenses and their tolerance to experimental inaccuracies of layers thickness and errors of permittivity values of materials. The multilayer structure consisting of silver and amorphous TiO2 is optimised in terms of the transmission efficiency and FWHM of the point spread function. Standard deviation of thickness for both metals and dielectrics layers, accepted in simulations, are twice bigger than actual fabrication parameters determined with quartz crystal microbalance. The errors of material permittivity measurements are taken from literature. Numerical investigation of imaging properties of the lenses is performed with the transfer matrix method. The quality of surfaces of silica substrate, titanium oxide, gold, and silver layers is measured with atomic force microscope.

Citation Download Citation

Tomasz Stefaniuk, Rafal Kotynski, Grzegorz Nowak, and Tomasz Szoplik "Influence of fabrication accuracies of metal-dielectric layered flat lenses on their imaging properties", Proc. SPIE 7711, Metamaterials V, 77110G (29 April 2010); https://doi.org/10.1117/12.858004

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