Author Affiliations
Abstract
1 Light, nanomaterials, nanotechnologies (L2n), ERL 7004, CNRS. University of Technology of Troyes, 12 rue Marie Curie, 10004 Troyes Cedex, France
2 Teem Photonics, 61 Chemin du Vieux Chêne, 38246 Meylan, France
3 Key Laboratory of Advanced Display and System Application, Ministry of Education, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China
4 Sino-European School of Technology, Shanghai University, Shanghai 200044, China
5 e-mail: christophe.couteau@utt.fr
6 e-mail: sylvain.blaize@utt.fr
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 two-photon 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 QD-polymer 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.
Photonics Research
2020, 8(9): 09001541
Author Affiliations
Abstract
Key Laboratory of Micro/Nano Systems for Aerospace of Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, China
The emerging perfect-absorber metamaterials (PAMs) provide an alternative material approach for the next generation of electromagnetic detection at any frequency band of interest. One type of dual cross-shaped PAMs is developed to obtain multiplex-band spectrum absorption at mid-infrared region. Three distinct absorption peaks are attributed to the polarization sensitivity excitation of the plasmonic resonance. The charge density distributions, which are excited by resonant electromagnetic waves passing through the PAMs medium, provide insights into the observed absorption behavior. We find that the retrieved optical properties of the PAMs including permittivity and permeability are still consistent with the sum of the Drude and Lorentz type models at wavelengths ranging from 2.0 to 10.0 mm. Such multiplex-band absorption properties enable the proposed PAMs a powerful tool for the direct detection of multiple molecular vibrational structures, and for multiple spectra infrared detection.
050.6624 Subwavelength structures 160.3918 Metamaterials 260.5430 Polarization 
Chinese Optics Letters
2014, 12(10): 101603

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