dielectric waveguide การใช้

• Optical dielectric waveguides guide electromagnetic waves in the optical spectrum ( light ).
• Let us consider for example the Non-Radiative Dielectric waveguide ( NRD ).
• Dielectric waveguides use total internal reflection to confine light in a high index region.
• The silicon waveguide supports dielectric waveguide mode, which is mostly confined in silicon.
• In an optical fiber or other dielectric waveguide, modes are generally of the hybrid type.
• A "'dielectric waveguide "'employs a solid dielectric rod rather than a hollow pipe.
• An optical fiber is a cylindrical dielectric waveguide that transmits light along its axis by the process of total internal reflection.
• A relatively recent technology being used inside hollow-metal-waveguide filters is finline, a kind of planar dielectric waveguide.
• Some structures, such as non-radiative dielectric waveguides and the Goubau line, use both metal walls and dielectric surfaces to confine the wave.
• Propagation in a dielectric waveguide may be viewed in the same way, with the waves confined to the dielectric by total internal reflection at its surface.
• When these two structures are brought close to each other, the dielectric waveguide mode supported by the silicon nanowire couples to the surface plasmon mode supported by the metal surface.
• Around 2000, a system was developed that concentrated radio frequency waves into a solid dielectric waveguide made of ceramic which energized a light-emitting plasma in a bulb positioned inside.
• A "'hybrid plasmonic waveguide "'is an optical waveguide that achieves strong light confinement by coupling the light guided by a dielectric waveguide and a plasmonic waveguide.
• Stubs can be constructed with any type of transmission line : parallel conductor line ( where they are called Lecher lines ), coaxial cable, stripline, waveguide, and dielectric waveguide.
• In contrast, the surface of the dielectric waveguide is an interface between two dielectrics, so the fields of the wave penetrate outside the dielectric in the form of an evanescent ( non-propagating ) wave.
• Some sources also refer to waveguide, dielectric waveguide, and even optical fibre as transmission line, however these lines require different analytical techniques and so are not covered by this article; see Waveguide ( electromagnetism ).