Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation
Micro-ring resonators made of titanium dioxide were decorated with local light sources comprising CdSe/CdS colloidal quantum dot aggregates. The active micro-resonators are operated to achieve efficient evanescent excitation of nearby co-planar integrated waveguides. Coupled-mode analysis and numeri...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2020-04-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2019-0516 |
| _version_ | 1819136745577381888 |
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| author | Weeber Jean-Claude Colas-des-Francs Gérard Bouhelier Alexandre Leray Aymeric Vasilev Kirill Yu Xiao Hammani Kamal Arocas Juan-Miguel Gadret Gregory Markey Laurent Dubertret Benoit |
| author_facet | Weeber Jean-Claude Colas-des-Francs Gérard Bouhelier Alexandre Leray Aymeric Vasilev Kirill Yu Xiao Hammani Kamal Arocas Juan-Miguel Gadret Gregory Markey Laurent Dubertret Benoit |
| author_sort | Weeber Jean-Claude |
| collection | DOAJ |
| description | Micro-ring resonators made of titanium dioxide were decorated with local light sources comprising CdSe/CdS colloidal quantum dot aggregates. The active micro-resonators are operated to achieve efficient evanescent excitation of nearby co-planar integrated waveguides. Coupled-mode analysis and numerical simulations are used to capture the dynamic of the optical interaction between locally activated resonators and integrated waveguides. In this context, we exemplify the key role of resonator intrinsic loss. Next, we show that locally activated or bus-waveguide excited resonators are in optimum waveguide interaction for the same so-called critical coupling condition, although the physical origin of this property is different for each configuration. More importantly, we found that a locally activated resonator is a fabrication imperfection tolerant configuration for the coupling light of local sources into waveguides. This remarkable property originates from the opposite change of the power cycling into the resonator and the waveguide coupling efficiency as a function of the resonator-waveguide separation gap. By operating an 8-μm-radius ring resonator with loaded quality factors around Q = 2100, we experimentally demonstrate a 5.5-dB enhancement of the power coupled into the output waveguide compared to a direct local source waveguide excitation. |
| first_indexed | 2024-12-22T10:39:52Z |
| format | Article |
| id | doaj.art-3bd5e24c26494b299ef82926ad298f28 |
| institution | Directory Open Access Journal |
| issn | 2192-8606 2192-8614 |
| language | English |
| last_indexed | 2024-12-22T10:39:52Z |
| publishDate | 2020-04-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-3bd5e24c26494b299ef82926ad298f282022-12-21T18:29:04ZengDe GruyterNanophotonics2192-86062192-86142020-04-01961411142310.1515/nanoph-2019-0516nanoph-2019-0516Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitationWeeber Jean-Claude0Colas-des-Francs Gérard1Bouhelier Alexandre2Leray Aymeric3Vasilev Kirill4Yu Xiao5Hammani Kamal6Arocas Juan-Miguel7Gadret Gregory8Markey Laurent9Dubertret Benoit10Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne-Franche Comté, 9 avenue A. Savary, F-21078 Dijon, FranceLaboratoire de Physique et d’Étude des Matériaux, Centre National de la Recherche Scientifique, UMR8213, École Supérieure de Physique et de Chimie de la ville de Paris, 10 Rue Vauquelin, 75231 Paris, FranceMicro-ring resonators made of titanium dioxide were decorated with local light sources comprising CdSe/CdS colloidal quantum dot aggregates. The active micro-resonators are operated to achieve efficient evanescent excitation of nearby co-planar integrated waveguides. Coupled-mode analysis and numerical simulations are used to capture the dynamic of the optical interaction between locally activated resonators and integrated waveguides. In this context, we exemplify the key role of resonator intrinsic loss. Next, we show that locally activated or bus-waveguide excited resonators are in optimum waveguide interaction for the same so-called critical coupling condition, although the physical origin of this property is different for each configuration. More importantly, we found that a locally activated resonator is a fabrication imperfection tolerant configuration for the coupling light of local sources into waveguides. This remarkable property originates from the opposite change of the power cycling into the resonator and the waveguide coupling efficiency as a function of the resonator-waveguide separation gap. By operating an 8-μm-radius ring resonator with loaded quality factors around Q = 2100, we experimentally demonstrate a 5.5-dB enhancement of the power coupled into the output waveguide compared to a direct local source waveguide excitation.https://doi.org/10.1515/nanoph-2019-0516colloidal emittersmicro-ring resonatorlocal light sourcestitanium dioxide waveguideintegrated light source resonators |
| spellingShingle | Weeber Jean-Claude Colas-des-Francs Gérard Bouhelier Alexandre Leray Aymeric Vasilev Kirill Yu Xiao Hammani Kamal Arocas Juan-Miguel Gadret Gregory Markey Laurent Dubertret Benoit Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation Nanophotonics colloidal emitters micro-ring resonator local light sources titanium dioxide waveguide integrated light source resonators |
| title | Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation |
| title_full | Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation |
| title_fullStr | Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation |
| title_full_unstemmed | Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation |
| title_short | Colloidal quantum dots decorated micro-ring resonators for efficient integrated waveguides excitation |
| title_sort | colloidal quantum dots decorated micro ring resonators for efficient integrated waveguides excitation |
| topic | colloidal emitters micro-ring resonator local light sources titanium dioxide waveguide integrated light source resonators |
| url | https://doi.org/10.1515/nanoph-2019-0516 |
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