A superlattice comprising alternating layers of negative-refractive-index photonic crystals and positive-refractive-index dielectric media has been shown to exhibit an effective refractive index of zero. Experiments show that light passing through such a material experiences no phase shift.
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Alu, A., Silveirinha, M. G., Salandrino, A. & Engehta, N. Phys. Rev. B 75, 155410 (2007).
Enoch, S., Tayeb, G., Sabouroux, P., Guerin, N. & Vincent, P. Phys. Rev. Lett. 89, 213902 (2002).
Edwards, B., Alu, A., Young, M. E., Silveirinha, M. & Engheta, N. Phys. Rev. Lett. 100, 033903 (2008).
Li, J., Zhou, L., Chan, C. T. & Sheng, P. Phys. Rev. Lett. 90, 083901 (2003).
Mocella, V. et al. Phys. Rev. Lett. 102, 133902 (2009).
Kocaman, S. et al. Nature Photon. 5, 499–505 (2011).
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Schilling, J. The quest for zero refractive index. Nature Photon 5, 449–451 (2011). https://doi.org/10.1038/nphoton.2011.172
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