Optical waveguide structures

专利名称：Optical waveguide structures发明人：PIERRE SIMON JOSEPH BERINI申请号：AU2335301申请日：20001222公开号：AU2335301A公开日：20010709

摘要：The purely bound electromagnetic modes of propagation (plasmon-polaritonwaves) supported by waveguide structures comprised of a thin lossy metal film of finitewidth embedded in an infinite homogeneous dielectric have been characterized at opticalwavelengths. One of the fundamental modes supported by the structure evolves withdecreasing film thickness and width towards the TEM wave supported by the background(an evolution similar to that exhibited by the Sb mode in symmetric metal film slabwaveguides), its losses and phase constant tending asymptotically towards those of theTEM wave. Attenuation values can be well below those of the Sb mode supported by thecorresponding metal film slab waveguide. Low mode power attenuation in the

neighbourhood of 10 to 0.1 dB/cm is achievable at optical communication wavelengths,with even lower values being possible, thus enabling various devices to be constructed,such as couplers, splitters, modulators, interferometers, switches and periodic structures.

申请人：UNIVERSITY OF OTTAWA

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