Abstract

A theoretical formulation of coherent optical tunneling and the subsequent exchange of electromagnetic energy between two Mie-sized microspheres is presented. The coupled-mode theory of Debye potentials is used. A useful analytical expression for the self- and mutual-coupling coefficients that are involved in the time-evolved coupled-mode equations is derived under a weakly coupling approximation. Sample numerical results are shown for coupling between identical spheres.

© 1993 Optical Society of America

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