Using stretching/shearing transformations on quadratic/hexagonal structures moves the dielectric rods/ holes and creates curvilinear photonic crystals, but keeps the bandgap effect. This design freedom leads to new resonator structures and arbitrary angle waveguides.
© 2004 Optical Society of America
J. Zarbakhsh, K. Hingerl, F. Hagmann, S. F. Mingaleev, and K. Busch, "Arbitrary angle waveguiding applications of two dimensional curvilinear photonic crystals," in Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, OSA Technical Digest (Optical Society of America, 2004), paper DTuB4.
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