layer stacked Fano resonance photonic crystal slabs on both Si and quartz substrates. A
single layer photonic crystal filter was designed and a Q factor of 1,737 was obtained with 23
dB extinction ratio. With stacked double-layer photonic crystal configuration, the optical filter
Q can increase to over 10,000,000 in design. Double-layer filters with quality factor of 9,734
and extinction ratio of 8 dB were experimentally demonstrated, for a filter design with target …