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您的检索式：作者名="CHRISTOPHE COUTEAU"
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| 1 | Quantum super-oscillation of a single photon显示文摘Super-oscillation is a counterintuitive phenomenon describing localized fast variations of functions and fields that happen at frequencies higher than the highest Fourier component of their spectra.The physical implications of this effect have been studied in information theory and optics of classical fields,and have been used in super-resolution imaging.As a general phenomenon of wave dynamics,super-oscillations have also been predicted to exist in quantum wavefunctions.Here we report the experimental demonstration of super-oscillatory behavior of a single-quantum object,a photon.The super-oscillatory behavior is demonstrated by tight localization of the photon wavefunction after focusing with an appropriately designed slit mask to create an interference pattern with a sub-diffraction hotspot(~0.45λ).Such quantum super-oscillation can be used for low-intensity far-field super-resolution imaging techniques even down to single-photon counting regime,which would be of interest to quantum physics and non-invasive and label-free biological studies. | Guang Hui Yuan Stefano Vezzoli Charles Altuzarra Edward TF Rogers Christophe Couteau Cesare Soci Nikolay I Zheludev | 2016 | Light(Science & Applications)2016，5，1： | 1 |
| 2 | Advanced hybrid plasmonic nano-emitters using smart photopolymer显示文摘The integration of nano-emitters into plasmonic devices with spatial control and nanometer precision has become a great challenge.In this paper,we report on the use of a smart polymer to selectively immobilize nano-emitters on specific preselected sites of gold nanocubes(GNCs).The cunning use of the polymer is twofold.First,it records both the selected site and the future emitters-GNC distance through plasmon-assisted photopolymerization.Second,because the polymer is chemically functionalized,it makes it possible to attach the nano-emitters right at the preselected polymerized sites,which subsequently recognize the nano-emitters to be attached.Since the resulting active medium is a spatial memory of specific plasmonic modes,it is anisotropic,making the hybrid nanosources sensitive to light polarization.The ability to adjust their statistical average lifetime by controlling the thickness of the nanopolymer is demonstrated on two kinds of nano-emitters coupled to GNCs:doped polystyrene nanospheres and semiconductor colloidal quantum dots. | DANDAN GE ALI ISSA SAFI JRADI CHRISTOPHE COUTEAU SYLVIE MARGUET RENAUD BACHELOT | 2022 | Photonics Research2022，10，7： | 0 |
| 3 | Towards the integration of nanoemitters by direct laser writing on optical glass waveguides显示文摘A major challenge towards nanophotonics is the integration of nanoemitters on optical chips.Combining the optical properties of nanoemitters with the benefits of integration and scalability of integrated optics is still a major issue to overcome.In this work,we demonstrate the integration of nanoemitters positioned in a controlled manner onto a substrate and onto an optical ion-exchanged glass waveguide via direct laser writing based on twophoton polymerization.Our nanoemitters are colloidal CdSe/ZnS quantum dots(QDs)embedded in polymeric nanostructures.By varying the laser parameters during the patterning process,we make size-controlled QDpolymer nanostructures that were systematically characterized using optical and structural methods.Structures as small as 17 nm in height were fabricated.The well-controlled QD-polymer nanostructure systems were then successfully integrated onto a new photonic platform for nanophotonics made of an ion-exchanged waveguide.We show that our QDs maintain their light emitting quality after integration as verified by photoluminescence(PL)measurements.Ultimately,QD emission coupled to our waveguides is detected through a home-built fiber-edge coupling PL measurement setup.Our results show the potential for future integration of nanoemitters onto complex photonic chips. | XIAOLUN XU AURÉLIE BROUSSIER TIZIANA RITACCO MACKRINE NAHRA FABIEN GEOFFRAY ALI ISSA SAFI JRADI RENAUD BACHELOT CHRISTOPHE COUTEAU AND SYLVAIN BLAIZE | 2020 | Photonics Research2020，8，9： | 0 |
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