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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2015 ; 112 (40): 12288-92 Nephropedia Template TP
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Single quantum dot controls a plasmonic cavity?s scattering and anisotropy #MMPMID26372957
Hartsfield T; Chang WS; Yang SC; Ma T; Shi J; Sun L; Shvets G; Link S; Li X
Proc Natl Acad Sci U S A 2015[Oct]; 112 (40): 12288-92 PMID26372957show ga
We experimentally demonstrate that a single semiconductor quantum dot placed in close proximity to a plasmonic cavity (i.e., a spherical metallic nanoparticle) can be used to control the scattering spectrum and anisotropy of the latter. The scattering spectrum of the hybrid structure features a Fano resonance mediated by single photon absorption/scattering. This result is highly counterintuitive because the scattering cross sections of these two nanoparticles differ by four orders of magnitude. Our work represents a critical step toward realizing quantum plasmonic nanostructures that are capable of producing scattered light, which, depending on its polarization state, obeys either quantum or classical statistics. Furthermore, our work enables a hybrid orientation sensor unaffected by photobleaching of quantum dots.