Low loss photonic crystal slab waveguides: fabrication, experiment, and theory

This study fabricates state-of-the-art PCS waveguides with a 5 dB/cm propagation loss using precise EBL. This work demonstrates that the transmission characteristics of the PCS waveguides can be well explained by a new theoretical loss formalism based on photon Green functions. These results have profound implications for reliably designing high quality and substantially improved PCS based devices.