Wave propagation through a photonic crystal in a negative phase refractive-index region

• The wave propagation through a photonic crystal with a triangular lattice of air holes realized in the InP-InGaAsP heterostructure are studied theoretically for the transverse magnetic modes. The photonic crystal possesses a negative refractive index, and the self-focus of the beam is successfully observed. The weak side beams are observed due to high-order Bloch waves in the photonic crystal. The coupling efficiency for the outgoing waves to a waveguide is also studied.

Nyckelord

negative refractive index

photonic crystal

wave propagation

superprism phenomena

band-gap

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ref (ämneskategori)

art (ämneskategori)