The high - performance photodetector uses so - called surface plasmon polaritons, highly concentrated electromagnetic waves at metallic - dielectric interfaces, to combine optics and electronics on smallest space. (sciencedaily.com)
The researchers were able to further demonstrate that the resonance wavelength of the hyperbolic polaritons confined within these antennae was dependent only upon the aspect ratio (height / diameter), and was nominally independent upon the actual size and / or shape — demonstrating that antennas could be defined for a given application simply by controlling this ratio, thereby making them compatible to a wide array of device form - factors. (sciencedaily.com)
The analysis revealed that a single parameter determines the fixed angle along which polariton rays propagate with respect to the surface of the spheroids. (sciencedaily.com)