Demixing light paths inside disordered metamaterials


Vellekoop, I.M. and Putten, E.G. and Lagendijk, A. and Mosk, A.P. (2008) Demixing light paths inside disordered metamaterials. Optics Express, 16 (1). pp. 67-80. ISSN 1094-4087

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Abstract:We experimentally demonstrate the first method to focus light inside disordered photonic metamaterials. In such materials, scattering prevents light from forming a geometric focus. Instead of geometric optics, we used multi-path interference to make the scattering process itself concentrate light on a fluorescent nanoscale probe at the target position. Our method uses the fact that the disorder in a solid material is fixed in time. Therefore, even disordered light scattering is deterministic. Measurements of the probes fluorescence provided the information needed to construct a specific linear combination of hundreds of incident waves, which interfere constructively at the probe.

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Copyright:© 2008 Optical Society of America
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