Quantum super-oscillation of a single photon

Yuan, Guang; Vezzoli, Stefano; Altuzarra, Charles; Rogers, Edward T. F.; Couteau, Christophe; Soci, Cesare; Zheludev, Nikolay I.

doi:10.1038/lsa.2016.127

Cited by 51 publications

(43 citation statements)

References 49 publications

(51 reference statements)

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“…26 Nevertheless, the actual focusing efficiency of SOLs is always disappointing when truly used in super-resolution imaging microscopy. From a general survey on the focusing efficiency of the reported SOLs, 24,[32][33][34][35][36] it is clear that almost all of them are mainly the binary-amplitude (BA) type and binaryphase (BP) type, bringing about a much lower focusing efficiency that can be attributed to the coarse regulation of the light field behind the lens surface. Even for the large-sized SOLs, the focusing efficiency is only 5% at most.…”

Section: Introductionmentioning

confidence: 99%

Efficiency-enhanced and sidelobe-suppressed super-oscillatory lenses for sub-diffraction-limit fluorescence imaging with ultralong working distance

Yuan

et al. 2020

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Efficiency-enhanced and sidelobe-suppressed super-oscillatory lenses for sub-diffraction-limit fluorescence imaging with ultralong working distance

Yuan

et al. 2020

Nanoscale

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“…Strongly enhanced electromagnetic fields localized at interstitial nanogap junctions between metallic nanostructures, so‐called “plasmonic hotspots” are the fundamental basis of numerous promising technologies in the fields of plasmon‐enhanced spectroscopy, plasmonic biosensing, photocatalysis, and nanophotonics . One major challenge in expanding the use of plasmon‐enhanced applications lies in reproducible fabrication of high‐density plasmonic hotspots over large areas in a low‐cost, high‐throughput manner.…”

Section: Introductionmentioning

confidence: 99%

Self‐Assembly of Nanoparticle‐Spiked Pillar Arrays for Plasmonic Biosensing

Park

Min

et al. 2019

Adv Funct Materials

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Plasmonic biosensors have demonstrated superior performance in detecting various biomolecules with high sensitivity through simple assays. Scaled-up, reproducible chip production with a high density of hotspots in a large area has been technically challenging, limiting the commercialization and clinical translation of these biosensors. A new fabrication method for 3D plasmonic nanostructures with a high density, large volume of hotspots and therefore inherently improved detection capabilities is developed. Specifically, Au nanoparticle-spiked Au nanopillar arrays are prepared by utilizing enhanced surface diffusion of adsorbed Au atoms on a slippery Au nanopillar arrays through a simple vacuum process. This process enables the direct formation of a high density of spherical Au nanoparticles on the 1 nm-thick dielectric coated Au nanopillar arrays without high-temperature annealing, which results in multiple plasmonic coupling, and thereby large effective volume of hotspots in 3D spaces. The plasmonic nanostructures show signal enhancements over 8.3 × 10 8 -fold for surface-enhanced Raman spectroscopy and over 2.7 × 10 2 -fold for plasmon-enhanced fluorescence. The 3D plasmonic chip is used to detect avian influenza-associated antibodies at 100 times higher sensitivity compared with unstructured Au substrates for plasmon-enhanced fluorescence detection. Such a simple and scalable fabrication of highly sensitive 3D plasmonic nanostructures provides new opportunities to broaden plasmon-enhanced sensing applications.so-called "plasmonic hotspots" are the fundamental basis of numerous promising technologies in the fields of plasmonenhanced spectroscopy, [1][2][3][4][5][6][7][8][9][10] plasmonic biosensing, [11][12][13][14] photocatalysis, [15][16][17][18][19] and nanophotonics. [20,21] One major challenge in expanding the use of plasmonenhanced applications lies in reproducible fabrication of high-density plasmonic hotspots over large areas in a low-cost, highthroughput manner. Various methods have been explored, including aggregations of metallic nanoparticles, nanolithographic patterning, thin-film processing, and hybrid nanostructures. Despite extensive efforts, the development of a reproducible, commercially ready fabrication method that achieves both high quality (i.e., high sensitivity and good reproducibility) and high throughput (i.e., lowcost and wafer-scale fabrication) remains elusive.Among various plasmonic configurations, a nanoparticle-on-mirror (NPOM) geometry, where a nanoparticle is separated from a plain metal film by an ultrathin dielectric spacer layer, has been reported to be a highly efficient plasmonic substrate. [1][2][3][4][5] In the 2D NPOM configuration, however, electromagnetic hotspots are formed around the nanoparticle in a limited area; the effective hotspot volume accounts for a small fraction of the total

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“…The other key factor that influences the practical applications of planar SOLs is the fabrication process. To make a general survey on the fabrication technologies for the reported SOLs, 13,22,[30][31][32][33][34][35][36][37][38] as shown in Fig. 1, most devices were fabricated by focused ion beam (FIB) milling or electron beam lithography (EBL) because of their deep-subwavelength fabrication capability.…”

Section: Introductionmentioning

confidence: 99%