Searched for: subject%3A%22Circular%255C+polarization%22
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Dekker, Jeroen (author)
In this thesis new dielectric metasurfaces in immersion were explored with a periodic distribution of unit cells with multiple silicon cylinder structures on a reflective gold slab with a fused quartz spacer in between. These new metasurfaces were designed with 60 nm and 130 nm gaps in order to improve manufacturability and enable larger...
master thesis 2023
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Arias Campo, M. (author), Carluccio, G. (author), Blanco, Darwin (author), Litschke, Oliver (author), Bruni, Simona (author), Llombart, Nuria (author)
In this contribution, a broadband G-band leaky-wave (LW) fed lens antenna with an integrated dielectric grid polarizer is presented. The proposed wideband polarizer unit cell geometry enables its fabrication at frequencies higher than 100 GHz, presenting high transmission properties and low axial ratio (AR). A quasi-Analytic technique based...
journal article 2021
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Baladi, Elham (author), Xu, M. (author), Faria, Nicolas (author), Nicholls, Jeff (author), Hum, Sean V. (author)
This work presents the design and experimental validation of a dual-band fully reconfigurable circularly polarized (CP) reflectarray (RA) antenna for satellite communication applications in the Ku-band. The proposed structure operates with the downlink and uplink beams at frequency bands of [10.8-11.8] and [14-15.4] GHz, respectively....
journal article 2021
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Keller, Christoph U. (author), Snik, Frans (author), Patty, C. H.Lucas (author), Klindzic, D. (author), Krasteva, Mariya (author), Doelman, David S. (author), Wijnen, T.P.G. (author), Pallichadath, V. (author), Stam, D.M. (author)
Many biologically produced chiral molecules such as amino acids and sugars show a preference for left or right handedness (homochirality). Light reflected by biological materials such as algae and leaves therefore exhibits a small amount of circular polarization that strongly depends on wavelength. Our Life Signature Detection polarimeter ...
conference paper 2020
document
Copuroglu, O. (author)
Plane and crossed polarization are the two standard light modes in polarized light microscopy that are widely used to characterize crystalline and amorphous phases in cement-based materials. However, the use of the crossed polarized light mode has been found to be restrictive for studying birefringent phases quantitatively due to the extinction...
journal article 2016
Searched for: subject%3A%22Circular%255C+polarization%22
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