Photonic Bloch-dipole-Zener Oscillations in Binary Parabolic Optical Waveguide Arrays

Details Photonic Bloch-dipole-Zener Oscillations in Binary Parabolic Optical Waveguide Arrays Photonic Bloch-dipole-Zener Oscillations in Binary Parabolic Optical Waveguide Arrays

2011-02-28

arxiv.org/abs/1102.5591v1

J. Opt. Soc. Am. B 28, 1339 (2011)

Physics

Optics

Submitted to JOSA B

Scientific paper

10.1364/JOSAB.28.001339

We have studied the propagation and Zener tunneling of light in the binary parabolic optical waveguide array (BPOWA), which consists of two evanescently coupled dissimilar optical waveguides. Due to Bragg reflections, BPOWA attains two minibands separated by a minigap at the zone boundary. Various coherent superpositions of optical oscillations and Zener tunneling occur for different parameters on the phase diagram. In particular, Bloch-Zener oscillation and a different type of Bloch-dipole-Zener oscillation are obtained by the field-evolution analysis. The results may have potential applications in optical splitting and waveguiding devices and shed light on the coherent phenomena in optical lattices.

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