Browsing by Keywords "Transmission"
Now showing items 1-13 of 13
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China in Denmark the transmission of Chinese art and architecture from the view of Jørn Utzon’s Danish socio-cultural background
(SINTEF Academic Press, 2017)Danish architect Jørn Utzon’s lifetime obsession with Chinese art and architecture is well known. However, why Utzon was interested in China and how he perceived Chinese art and architecture were not clearly explained ... -
Experimental study of broadband unidirectional splitting in photonic crystal gratings with broken structural symmetry
(American Institute of Physics, 2013-04-15)It is experimentally demonstrated that the combination of diode and splitter functions can be realized in one broadband reciprocal device. The suggested performance is based on the dielectric photonic crystal grating whose ... -
Fano resonances in THz metamaterials composed of continuous metallic wires and split ring resonators
(Optical Society of America, 2014)We demonstrate theoretically and experimentally that Fano resonances can be obtained in terahertz metamaterials that are composed of periodic continuous metallic wires dressed with periodic split ring resonators. An ... -
Focusing of electromagnetic waves by a left-handed metamaterial flat lens
(Optical Society of America, 2005-10-31)We present here the experimental results from research conducted on negative refraction and focusing by a two-dimensional (2D) left-handed metamaterial (LHM) slab. By measuring the refracted electromagnetic (EM) waves from ... -
Frequency dependent steering with backward leaky waves via photonic crystal interface layer
(Optical Society of America, 2009)A Photonic Crystal (PC) with a surface defect layer (made of dimers) is studied in the microwave regime. The dispersion diagram is obtained with the Plane Wave Expansion Method. The dispersion diagram reveals that the ... -
Isolation and one-way effects in diffraction on dielectric gratings with plasmonic inserts
(Optical Society of America, 2009-01-02)Diffraction of plane waves on dielectric gratings with planar plasmonic inserts is studied with the emphasis put on the anomalous selectivity of diffraction orders. It is shown that some formally propagating orders can be ... -
Modeling of spirals with equal dielectric, magnetic, and chiral susceptibilities
(Taylor & Francis Inc., 2008)In this article, we study spiral particles with optimized design parameters, which can make possible the realization of media with equal dielectric, magnetic, and chiral susceptibilities. Two different spiral structures ... -
Multifrequency spatial filtering: a general property of two-dimensional photonic crystals
(Elsevier, 2016)Spatial filtering, an analog of frequency-domain filtering that can be obtained in the incidence angle domain at a fixed frequency is studied in the transmission mode for slabs of two-dimensional rod-type photonic crystals. ... -
One-way Rayleigh-Wood anomalies and tunable narrowband transmission in photonic crystal gratings with broken structural symmetry
(American Physical Society, 2013-05-03)In photonic crystal (PC) gratings whose structural symmetry is broken owing to one-side corrugations, the Rayleigh-Wood anomalies can appear in a one-way manner. In the combination with the vanishing coupling to the lowest ... -
Photonic bandgap narrowing in conical hollow core Bragg fibers
(AIP Publishing, 2014)We report the photonic bandgap engineering of Bragg fibers by controlling the thickness profile of the fiber during the thermal drawing. Conical hollow core Bragg fibers were produced by thermal drawing under a rapidly ... -
A transparent 90 degree polarization rotator by combining chirality and electromagnetic wave tunneling
(AIP Publishing, 2012-02-03)A three-layer chiral metamaterial is constructed by using two layers of four mutually rotated resonators and a subwavelength mesh sandwiched symmetrically between these layers. The resulting structure is an ultrathin, ... -
A two dimensional nanopatterned thin metallic transparent conductor with high transparency from the ultraviolet to the infrared
(American Institute of Physics, 2012-11-01)The optical properties of a two-dimensional nanohole patterned aluminum thin film in hexagonal lattice are studied. The transmission dip can be moved out from the visible range by manipulating the lattice constant. The ... -
Wave propagation in metamaterial structures and retrieval of homogenization parameters
(Bilkent University, 2007)Electromagnetic wave propagation in metamaterial structures (metamaterial slabs, metamaterial cylinders, metamaterial coated conducting cylinders etc.) are investigated. Scattered and transmitted electromagnetic fields ...
