Title :
Beam combination using near-zero index metamaterials
Author :
Wang, Xingping ; Feng, Yuanming ; Chen, Sujuan ; Zhao, Zeyu ; Zhou, Chongxi
Author_Institution :
State Key Lab. of Opt. Technol. for Microfabrication, Chinese Acad. of Sci., Chengdu, China
Abstract :
A multiple beams combiner based on three-dimensional (3D) isotropic near-zero index metamaterials (NZIM) is proposed. Built on the Snell´s law, the combination of multiple beams can be readily realized via NZIM and further validated by numerical finite-element simulation. Our computational results show that the NZIM beam combiner has characteristics of an extremely small divergence angle of 0.08° and a high transmissivity of 88.12%. A low loss NZIM with refractive index of 0.04 is obtained by CST STUDIO SUITE at the wavelength of 775 nm via `fishnet´ structure. Our method opens up a new application of NZIM which could obtain high-power beam and may have potential applications in optical fiber communication, and metamaterials-based imaging system etc.
Keywords :
finite element analysis; light transmission; metamaterials; optical elements; optical losses; optical materials; optical multilayers; refractive index; CST studio suite; Snell´s law; finite-element simulation; fishnet structure; multiple beams combiner; multiple layers; near-zero index metamaterials; optical loss; optical transmissivity; refractive index; three-dimensional isotropic metamaterials; wavelength 775 nm; Finite element methods; Laser beams; Laser excitation; Metamaterials; Optical losses; Optical pumping; Optical refraction; Optical variables control; Refractive index; Stimulated emission;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424583
