The first theoretical models of the propagation of an electromagnetic field in a waveguide date back to the second half of the 19th century (Hertz, Debye, Rayleigh). The technological fallout for long ...
Coaxial cables transmit radiation with a wavelength much bigger than their diameter. Now, a miniature version borrows this concept to carry visible light at the nanoscale. Researchers in nanophotonics ...
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