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Optimax Systems, Inc. - Ultrafast Coatings 2024 LB
Photonics Dictionary

surface wave

A wave that is guided by the interface between two different media or by a refractive index gradient in the medium. The field components of the wave may exist (in principle) throughout space, even to infinity, but become negligibly small within a finite distance from the interface. All guided modes, but not radiation modes, in an optical waveguide belong to a class known in electromagnetic theory as surface waves.
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