Sharp asymmetric line shapes in side-coupled waveguide-cavity systems

Fan, Shanhui
February 2002
Applied Physics Letters;2/11/2002, Vol. 80 Issue 6, p908
Academic Journal
We show that, for an optical microcavity side coupled with a waveguide, sharp, and asymmetric line shapes can be created in the response function by placing two partially reflecting elements into the waveguides. In such a system, the transmission coefficient varies from 0% to 100% in a frequency range narrower than the full width of the resonance itself. We numerically demonstrate this effect by simulating the propagation of electromagnetic waves in a photonic crystal. © 2002 American Institute of Physics.


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