Phys. Rev. Lett. 77, 3787–3790 (1996)High Transmission through Sharp Bends in Photonic Crystal WaveguidesReceived 3 June 1996; published in the issue dated 28 October 1996 We demonstrate highly efficient transmission of light around sharp corners in photonic band-gap waveguides. Numerical simulations reveal complete transmission at certain frequencies, and very high transmission (>95%) over wide frequency ranges. High transmission is observed even for 90° bends with zero radius of curvature, with a maximum transmission of 98% as opposed to 30% for analogous conventional dielectric waveguides. We propose a simple one-dimensional scattering theory model with a dynamic frequency-dependent well depth to describe the transmission properties. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.77.3787
DOI:
10.1103/PhysRevLett.77.3787
PACS:
42.79.Gn, 41.20.Jb, 03.80.+r
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