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Opt Express. 2008 Jan 7;16(1):67-80.

Demixing light paths inside disordered metamaterials.

Author information

1
Complex Photonic Systems, Faculty of Science and Technology and MESA+ Institute forNanotechnology, University of Twente, P.O.Box 217, 7500 AE Enschede, The Netherlands. i.m.vellekoop@utwente.nl

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.

PMID:
18521133
[Indexed for MEDLINE]

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