Demixing light paths inside disordered metamaterials

I.M. Vellekoop, E.G. van Putten, A. Lagendijk, A.P. Mosk

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145 Citations (Scopus)
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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.
Original languageEnglish
Pages (from-to)67-80
JournalOptics express
Volume16
Issue number1
DOIs
Publication statusPublished - 2008

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