Abstract

Combining near-field measurements with coupled-mode-theory analyses, we unambiguously identify all resonant modes in coupled systems containing two photonic resonators. Based on this technique, we perform extensive microwave experiments to study how the inter-resonator coupling varies against various configurational parameters. Our experimental results quantitatively verify a previously established effective model for photonic coupling, and highlight the importance of quadrupole terms in certain situations.

© 2015 Optical Society of America

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