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arXiv · 1304.6493

Millimeter-scale and large-angle self-collimation in a photonic crystal composed of silicon nanorods

Hao Li·Aimin Wu·Wei Li·Xulin Lin·Chao Qiu·Zhen Sheng·Xi Wang·Shichang Zou·Fuwan Gan
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Abstract

We report the observation of a large-angle self-collimation phenomenon occurring in photonic crystals composed of nanorods. Electromagnetic waves incident onto such photonic crystals from directions covering a wide-range of incident angles become highly localized along a single array of rods, which results in narrow-beam propagation without divergence. A propagation length of 0.4 mm is experimentally observed over the wavelength range of 1540 nm to 1570 nm, even in the large incident angle case, which is a very considerable length scale for on-chip optical interconnection.

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Hao Li, Aimin Wu, Wei Li, Xulin Lin, Chao Qiu, Zhen Sheng, Xi Wang, Shichang Zou, Fuwan Gan. 2013-04-24. Millimeter-scale and large-angle self-collimation in a photonic crystal composed of silicon nanorods. https://arxiv.org/abs/1304.6493

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