Minimizing finite-size effects in artificial resonance tunneling structures.
We consider finite-size effects in coupled cavity structures. Starting with microring resonator structures well described by transfer matrices, we obtain conditions that lead to the minimization of finite-size effects. Our approach does not require numerical optimization and requires only slight modification of design parameters guided by closed-form analytical expressions. Using a Breit-Wigner scattering formalism, we demonstrate that the scheme can be used to minimize finite-size effects in a general class of coupled cavity structures. The strength of the present technique lies in its simplicity and its applicability to a wide variety of structures described by tight-binding formalisms.
Chak
Philip
P
Department of Physics and Institute for Optical Sciences, University of Toronto, Toronto, Canada. pchak@physics.utoronto.ca
Sipe
J E
JE