Journal ArticleDOI
Role of surface plasmon polaritons on optical transmission through double layer metallic hole arrays
Rubén Ortuño,Carlos García-Meca,Francisco J. Rodríguez-Fortuño,Javier Martí,Alejandro Martínez +4 more
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TLDR
In this paper, the authors studied the far-field extraordinary optical transmission (EOT) through double-layer metallic grating structures patterned with subwavelength hole arrays and proposed a relatively simple model to predict the frequencies of those EOT peaks.Abstract:
We study analytically and numerically the far-field extraordinary optical transmission (EOT) through double-layer metallic grating structures patterned with subwavelength hole arrays. In addition to EOT phenomena due to the well-known surface plasmon polaritons (SPPs) on the outer surfaces such as those on a single layer hole array, further EOT peaks are observed. The separation between the metallic layers is small enough to allow SPPs propagating through the inner interfaces to couple and form an internal SPP, with a different dispersion relation from the outer one and so giving rise to EOT peaks at different frequencies. We propose a relatively simple model to predict the frequencies of those EOT peaks. Internal SPPs show certain unique properties different from the external SPPs: they can give rise to a magnetic response and a negative effective permeability, and the transmission of their EOT peaks increases when no direct line of sight is allowed through the structure. All these findings may be utilized in wavelength tuning of extraordinary optical transmission in subwavelength optics.read more
Citations
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Journal ArticleDOI
An ultra-wideband surface plasmonic filter in microwave frequency
TL;DR: In this paper, an ultra-wideband plasmonic waveguide based on designer surface Plasmon polaritons (DSPPs) with double gratings was proposed.
Journal ArticleDOI
Terahertz Plasmonic Structure With Enhanced Sensing Capabilities
TL;DR: In this article, a fishnet structure based on circular hole array insensitive to the polarization of the incident wave was proposed for plasmonic sensing in the terahertz frequency range.
Journal ArticleDOI
Rapid phase transition of a phase-change metamaterial perfect absorber
TL;DR: In this paper, the phase change material (Ge2Sb2Te5) was incorporated within a metamaterial perfect absorber (MMPA) and it was shown that the temperature of amorphous Ge 2Sb 2Te5 can be raised from room temperature to > 900K in just a few nanoseconds with a low light intensity of 150 W/m2 owing to the enhanced light absorption through strong plasmonic resonances in the absorber.
Journal ArticleDOI
Double-negative polarization-independent fishnet metamaterial in the visible spectrum.
Carlos García-Meca,Rubén Ortuño,Francisco J. Rodríguez-Fortuño,Javier Martí,Alejandro Martínez +4 more
TL;DR: It is shown that a second-order magnetic resonance present in the fishnet metamaterial can be enhanced so as to achieve simultaneous negative permittivity and permeability in the visible range.
Journal ArticleDOI
High-Performance Ultrathin Active Chiral Metamaterials.
TL;DR: Impressively, the spectral shift over a wavelength range that is more than one full width at half-maximum and the sign inversion of the CD spectra in a single ultrathin (1/5 of wavelength in thickness) MCM is achieved.
References
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Negative Refraction Makes a Perfect Lens
TL;DR: The authors' simulations show that a version of the lens operating at the frequency of visible light can be realized in the form of a thin slab of silver, which resolves objects only a few nanometers across.
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Extraordinary optical transmission through sub-wavelength hole arrays
Thomas W. Ebbesen,Thomas W. Ebbesen,Henri J. Lezec,H. F. Ghaemi,Tineke Thio,Peter A. Wolff,Peter A. Wolff +6 more
TL;DR: In this article, the optical properties of submicrometre cylindrical cavities in metallic films were explored and it was shown that arrays of such holes display highly unusual zero-order transmission spectra at wavelengths larger than the array period, beyond which no diffraction occurs.
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Sub-Diffraction-Limited Optical Imaging with a Silver Superlens
TL;DR: This work demonstrated sub–diffraction-limited imaging with 60-nanometer half-pitch resolution, or one-sixth of the illumination wavelength, using silver as a natural optical superlens and showed that arbitrary nanostructures can be imaged with good fidelity.
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Optical properties of metallic films for vertical-cavity optoelectronic devices.
TL;DR: The reflectance and the phase change on reflection from semiconductor-metal interfaces (including the case of metallic multilayers) can be accurately described by use of the proposed models for the optical functions of metallic films and the matrix method for multilayer calculations.