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arXiv · 0904.2352

Observations of zero-order bandgaps in negative-index photonic crystal superlattices at the near-infrared

S. Kocaman·R. Chatterjee·N. C. Panoiu·J. F. McMillan·M. B. Yu·R. M. Osgood·D. L. Kwong·C. W. Wong
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Abstract

We present the first observations of zero-n bandgaps in photonic crystal superlattices consisting of alternating stacks of negative index photonic crystals and positive index dielectric materials in the near-infrared. Guided by ab initio three-dimensional numerical simulations, the fabricated nanostructured superlattices demonstrate the presence of zero-order gaps in remarkable agreement with theoretical predictions across a range of different superlattice periods and unit cell variations. These volume-averaged zero-index superlattice structures present a new type of photonic band gap, with potential for complete wavefront control for arbitrary phase delay lines and open cavity resonances.

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S. Kocaman, R. Chatterjee, N. C. Panoiu, J. F. McMillan, M. B. Yu, R. M. Osgood, D. L. Kwong, C. W. Wong. 2009-04-15. Observations of zero-order bandgaps in negative-index photonic crystal superlattices at the near-infrared. https://doi.org/10.1103/physrevlett.102.203905

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