Flat lens made of metamaterials

Gheorghe Gavriloaia; Teodora Stefan cel Mare; Radu Fumarel

doi:10.1117/12.823623

6 January 2009 Flat lens made of metamaterials

Gheorghe Gavriloaia, Teodora Stefan cel Mare, Radu Fumarel

Proceedings Volume 7297, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV; 72970D (2009) https://doi.org/10.1117/12.823623
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV, 2008, Constanta, Romania

Abstract

Metamaterials have negative refractive index and EM waves bend negatively. This negative bending allows a variety of applications from microwaves to optical frequencies. Negative refraction can be exploited to make novel lenses having flat surfaces and focus electromagnetic waves as well as produce a real 3-D image. These flat lenses do not have unique optical axes and the aperture sizes are smaller than a square wavelength. The electromagnetic field propagation on a multilayer structure: normal-metamaterial-normal is investigated and compared with homogenous media. The numerical method, FDTD, was used for a Gaussian source and for more sinusoidal sources. The point focusing analysis of a flat lens is presented.

Citation Download Citation

Gheorghe Gavriloaia, Teodora Stefan cel Mare, and Radu Fumarel "Flat lens made of metamaterials", Proc. SPIE 7297, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies IV, 72970D (6 January 2009); https://doi.org/10.1117/12.823623

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