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A three-dimensional optical photonic crystal

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2 Author(s)
Lin, Shawn‐Yu ; Sandia Nat. Labs., Albuquerque, NM, USA ; Fleming, J.G.

We report on the successful fabrication of a working three-dimensional (3D) crystal operating at optical wavelength λ. The minimum feature size of the 3D structure is 180 nm. The 3D crystal is free from defects over the entire 6-inch silicon wafer and has an absolute photonic bandgap (PBG) centered at λ~1.6 μm. Our data provides the first conclusive evidence for the existence of a complete 3D PBG in optical λ. This development will pave the way to tinier, cheaper, more effective waveguides, optical switches and lasers

Published in:

Lightwave Technology, Journal of  (Volume:17 ,  Issue: 11 )