Journal
OPTICS EXPRESS
Volume 16, Issue 1, Pages 67-80Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.000067
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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. (c) 2008 Optical Society of America.
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