Negative refraction in tunable periodic photonic structures

Christian R. Rosberg; Dragomir N. Neshev; Andrey A. Sukhorukov; Wieslaw Krolikowski; Yuri S. Kivshar

doi:10.1117/12.622634

12 October 2005 Negative refraction in tunable periodic photonic structures

Christian R. Rosberg, Dragomir N. Neshev, Andrey A. Sukhorukov, Wieslaw Krolikowski, Yuri S. Kivshar

Proceedings Volume 5950, Photonic Crystals and Fibers; 59500C (2005) https://doi.org/10.1117/12.622634
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

We predict theoretically and observe experimentally tunable refraction of beams in optically-induced lattices. By selective excitation of diferent Bloch modes in a tilted lattice, we observe positive and negative refraction for beams associated with the first and the second spectral band, respectively. We demonstrate tunability of the output beam position by dynamically adjusting the lattice depth. At higher laser intensities, the beam broadening due to difraction can be suppressed through nonlinear self-focusing while preserving the general steering properties.

Citation Download Citation

Christian R. Rosberg, Dragomir N. Neshev, Andrey A. Sukhorukov, Wieslaw Krolikowski, and Yuri S. Kivshar "Negative refraction in tunable periodic photonic structures", Proc. SPIE 5950, Photonic Crystals and Fibers, 59500C (12 October 2005); https://doi.org/10.1117/12.622634

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