Negative refraction at visible frequencies. Nanofabricated photonic materials offer opportunities for crafting the propagation and dispersion of light in matter. We demonstrate an experimental realiz... HJ Lezec,JA Dionne,HA Atwater - 《Science》 被引量: 0发表: 2007年 Tunable zero and negative refrac...
The largest negative refraction is observed at the wavelength of 500 nm, where the angle of refraction reaches 1.03°. The corresponding loss tangent and equivalent refractive index are 1.08 and 0.47, respectively. However, negative refraction is not observed at the wavelengths longer than 550 nm ...
However, a broadband negative refraction has been challenging because they mainly involve optical resonances. This paper reports the realization of broadband negative refraction in the visible spectrum by using vertically-stacked metal-dielectric multilayer structures. Such structure exploits the characteristics...
All-Angle Negative Refraction for Surface Plasmon Waves Using a Metal-Dielectric-Metal Structure. Phys. Rev. Lett. 96, 073907 (2006). Article ADS Google Scholar Lezec, H., Dionne, J. & Atwater, H. Negative Refraction at Visible Frequencies. Science 316, 430 (2007). Article ADS CAS ...
内容提示: In 2000, an artificially structured composite was shown to exhibita negative index of refraction over a band of microwavefrequencies1. This demonstration of a previously unexploitedelectromagnetic (EM) property proved the importance ofengineered materials and has resulted in an extraordinary ...
Negative Refraction Makes a Perfect Lens
thebilayerrosette-shapedchiralmetamaterialispro-posedandfabricatedatmicrowavefrequency6,7andatopti-calregime.8–10Thismetamaterialexhibitsaverystrongro-tarypowerinthemicrowave,near-infrared,andvisiblespectralranges.Inthemicrowavespectralregion,intermsofrotarypowerperwavelength,thebilayerstructurerotates5ordersofmagnitude...
Due to the asymmetricgeometry of the cross-wire pairs, the cross coupling be-tween the magnetic field and electric field happens at thechiral resonances and provide strong chirality around theresonance frequencies. Further study shows the chiralresonances are either electric resonance or magnetic res-...
A. Negative refraction at visible frequencies. Science 316, 430–432 (2007) Article ADS CAS Google Scholar Liu, N. et al. Three-dimensional photonic metamaterials at optical frequencies. Nature Mater. 7, 31–37 (2008) Article ADS CAS Google Scholar Hoffman, A. J. et al. Negative ...
" Optics Letters, vol. 30, pp. 3356-3358, December,2005. [36] A. N. Grigorenko, A. K. Geim, H. F. Gleeson, Y. Zhang, A. A. Firsov, I. Y. Khrushchev, and J. Petrovic, "Nanofabricated Media with negative permeability at visible frequencies," Nature, vol. 438, pp. 335-338...