Purcell enhancement of a deterministically coupled quantum dot in an SU-8 laser patterned photonic crystal heterostructure
| Autor: | Guanhua Ying, Stephen A Lennon, Vitaly Osokin, Frederic S. F. Brossard, Huan He, Edmund Clarke, J. P. Griffiths, Luke P. Nuttall, Robert A. Taylor, Hanbo Shao |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Physics Quantum optics Photoluminescence Physics and Astronomy (miscellaneous) business.industry Cavity quantum electrodynamics Physics::Optics Heterojunction 02 engineering and technology 021001 nanoscience & nanotechnology Laser Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences law.invention Quantum dot law Single-photon source 0103 physical sciences Optoelectronics Physics::Accelerator Physics 0210 nano-technology business Photonic crystal |
| ISSN: | 0003-6951 |
| Popis: | Enhancement of single photon source emission through cavity quantum electrodynamics is key to the realization of applicable emitters in many quantum optics technologies. In this work, we present a flexible and convenient cavity fabrication process that writes a SU-8 microstrip onto a photonic crystal waveguide deterministically, in which InGaAs/GaAs quantum dots are present as emitters. The strip cavity is laser patterned at the location of a quantum dot with a chosen emission wavelength. Micro-photoluminescence studies are undertaken, which demonstrate an enhanced emission intensity by a factor of 2.1 with weak coupling to a single quantum dot, and time-resolved photoluminescence further shows a Purcell enhancement factor of 2.16. The fabrication process is, thus, verified as a reliable recipe to introduce deterministic cavity coupling to a chosen quantum dot. |
| Databáze: | OpenAIRE |
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