Terahertz Engineering
Evanescent coupling refers to the transfer of energy between two waveguides or optical fibers through their evanescent fields, which are the non-propagating fields that decay exponentially away from the surface of the waveguide. This phenomenon allows for efficient energy transfer without the need for physical contact and is crucial in designing devices like terahertz waveguides and transmission lines, where maintaining signal integrity and minimizing losses are essential.
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