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| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2401.06096 |
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| _version_ | 1866916319619710976 |
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| author | Krumrein, Marcel Nold, Raphael Davidson-Marquis, Flavie Bourama, Arthur Niechziol, Lukas Steidl, Timo Peng, Ruoming Körber, Jonathan Stöhr, Rainer Gross, Nils Smet, Jurgen Ul-Hassan, Jawad Udvarhelyi, Péter Gali, Adam Kaiser, Florian Wrachtrup, Jörg |
| author_facet | Krumrein, Marcel Nold, Raphael Davidson-Marquis, Flavie Bourama, Arthur Niechziol, Lukas Steidl, Timo Peng, Ruoming Körber, Jonathan Stöhr, Rainer Gross, Nils Smet, Jurgen Ul-Hassan, Jawad Udvarhelyi, Péter Gali, Adam Kaiser, Florian Wrachtrup, Jörg |
| contents | Emitters in high refractive index materials like 4H-SiC suffer from reduced detection of photons because of losses caused by total internal reflection. Thus, integration into efficient nanophotonic structures which couple the emission of photons to a well defined waveguide mode can significantly enhance the photon detection efficiency. In addition, interfacing this waveguide to a classical fiber network is of similar importance to detect the photons and perform experiments. Here, we show a waveguide fiber interface in SiC. By careful measurements we determine efficiencies exceeding 93 % for the transfer of photons from SiC nanobeams to fibers. We use this interface to create a bright single photon source based on waveguide integrated V2 defects in 4H-SiC and achieve an overall photon count rate of 181 kilo-counts per second. We observe and quantify the strain induced shift of the ground state spin states and demonstrate coherent control of the electron spin with a coherence time of T2=42.5 $\rmμ$s. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_06096 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Precise characterization of a silicon carbide waveguide fiber interface Krumrein, Marcel Nold, Raphael Davidson-Marquis, Flavie Bourama, Arthur Niechziol, Lukas Steidl, Timo Peng, Ruoming Körber, Jonathan Stöhr, Rainer Gross, Nils Smet, Jurgen Ul-Hassan, Jawad Udvarhelyi, Péter Gali, Adam Kaiser, Florian Wrachtrup, Jörg Quantum Physics Optics Emitters in high refractive index materials like 4H-SiC suffer from reduced detection of photons because of losses caused by total internal reflection. Thus, integration into efficient nanophotonic structures which couple the emission of photons to a well defined waveguide mode can significantly enhance the photon detection efficiency. In addition, interfacing this waveguide to a classical fiber network is of similar importance to detect the photons and perform experiments. Here, we show a waveguide fiber interface in SiC. By careful measurements we determine efficiencies exceeding 93 % for the transfer of photons from SiC nanobeams to fibers. We use this interface to create a bright single photon source based on waveguide integrated V2 defects in 4H-SiC and achieve an overall photon count rate of 181 kilo-counts per second. We observe and quantify the strain induced shift of the ground state spin states and demonstrate coherent control of the electron spin with a coherence time of T2=42.5 $\rmμ$s. |
| title | Precise characterization of a silicon carbide waveguide fiber interface |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2401.06096 |