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Wideband backscattering reduction at terahertz using compound reflection grating
(Optical Society of America, 2017)
Artículo / Artikulua,
Backscattering reduction is usually achieved by using either absorbers or diffractions gratings at the expense of a narrow bandwidth. In this paper, we propose a different strategy based on a metallic compound reflection ...
Annular apertures in metallic screens as extraordinary transmission and frequency selective surface structures
(IEEE, 2017)
Artículo / Artikulua,
A 2-D periodic array of annular apertures (or ring slots) is studied using an accurate circuit model. The model accounts for distributed and dynamic effects associated with the excitation of high-order modes operating above ...
Experimental realization of an epsilon-near-zero graded-index metalens at terahertz frequencies
(American Physical Society, 2017)
Artículo / Artikulua,
The terahertz band has been historically hindered by the lack of efficient generators and detectors, but a series of recent breakthroughs have helped to effectively close the “terahertz gap.” A rapid development of terahertz ...
High aperture efficiency wide corrugations bull’s-eye antenna working at 60 GHz
(IEEE, 2017)
Artículo / Artikulua,
A full metallic Bull’s-Eye (BE) antenna operating at 60 GHz is numerically and experimentally analyzed. The antenna presents wide grooves, rather than narrow ones, which support higher order resonances that lead to a large ...
Optical sensors based on lossy-mode resonances
(Elsevier Science, 2017)
Artículo / Artikulua,
3D-printed 96 GHz bull’s-eye antenna with off-axis beaming
(IEEE, 2017)
Artículo / Artikulua,
Reducing the profile, footprint and weight of antennas embarked on aircrafts, drones or satellites has been a long pursued objective. Here we tackle this issue by developing a millimeter-wave 96 GHz elliptical Bull’s-Eye ...
Metasurface-based ultrathin carpet cloaks for millimeter waves
(2017)
Artículo / Artikulua,
A metasurface carpet cloak for millimetre-wave range with polarization independent
performance is experimentally demonstrated. It is shown that the cloak is able to mimic the
ground plane by fully restoring the amplitude ...
Characterization of microring filters for differential group delay applications
(IEEEOptical Society of America, 2017)
Artículo / Artikulua,
The longitudinal offset technique permits to improve
the accuracy of the coupling coefficients of integrated directional
couplers and provides designs that can be easily implemented
with current fabrication tolerances. ...
Photonic crystal fiber interferometer coated with a PAH/PAA nanolayer as humidity sensor
(Elsevier, 2017)
Artículo / Artikulua,
In this paper, an optical fiber interferometric humidity sensor is presented. The device consists of 1 cmlong segment of photonic crystal fiber (PCF) spliced to standard single mode fibers (SMFs), forming an
interferometer: ...
Enhancing sensitivity of photonic crystal fiber interferometric humidity sensor by the thickness of SnO2 thin films
(Elsevier, 2017)
Artículo / Artikulua,