

SOI Photonic Crystal Slab Having 2D PBG
SOI (Silicon-On-Insulator) substrate
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PBG Waveguide
- Single-mode optical waveguides that operate within PBG
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Extremely large group dispersion of PBG waveguides
- Group velocity dispersion (in other words, dispersion of the traveling speed of the light) is largely controllable in photonic crystal waveguides.
- We observed
- extremely large group velocity dispersion
- extremely large group index (n>90), meaning that the light velocity is slowed down to 1/100 c!
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