Abstract
By using a novel automated optimization method, we demonstrate that several figures of merit of photonic crystal slab structures can be improved dramatically while keeping the designs fabrication-friendly. We achieve quality factors of simple nano-cavities exceeding 106. We then present a novel coupled-resonator optical waveguide, whose optimized designs display low-losses and slow-light propagation with record-high group index-bandwidth product.
© 2015 Optical Society of America
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