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We numerically demonstrate a photonic structure textile design that is infrared-transparent and enables infrared radiative cooling that is sufficient for localized management of thermal comfort given a set point increase in room temperature of 4°F.
We demonstrate ideal waveguide lenses with very large number of waveguides and with complete power concentration in a single waveguide. We also show for the first time an ideal waveguide lens structure.
Nearly perfect 90-degree bends and T-splitters are demonstrated in plasmonic nano-coaxial waveguides at the telecommunication wavelength, with bending and splitting efficiencies greater than 97% and 99%, respectively.
We demonstrate that meta-materials with extreme anisotropy allow for diffraction-free, deep sub-wavelength beam propagation and manipulation, as well as deep sub-wavelength imaging. We show a metamaterial design using existing materials.
We develop the coupled-mode theory for resonant apertures. We show that the maximum transmission and absorption cross sections for resonant apertures are only related to the wavelength and the directivity of the aperture's radiation pattern.
We demonstrate that in simply connected apertures containing a meta-material with extreme anisotropy all modes become purely transverse electro-magnetic modes, are dispersion-free, and have zero cutoff frequency. We show a meta-material design using existing materials.
We demonstrate numerically the ability to design a phase front using an array of metallic pillars. We show that in such structures, the local phase delay upon transmission can be tuned by local geometry.
We optimize the optical properties of nano-patterned metallic films for use as transparent conductive electrodes in optoelectronic devices by performing a constant-sheet-resistance transformation. Our design principles apply to both one- and two-dimensionally patterned films.
We analyze propagating plasmonic modes in deep-subwavelength coaxial metallic waveguides with a hollow core. Such modes couple to plane waves and exhibit much larger cut-off wavelengths than the TE11-mode in a conventional coaxial waveguide.
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