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 sti...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.展开更多
基金H2020 Marie Sklodowska-Curie Actions(765075)European Regional Development Fund+1 种基金Agence Nationale de la Recherche(ANR-17-EURE-0002)China Scholarship Council。
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.
