A deterministic quantum dot micropillar single photon source with65% extraction efficiency based on fluorescence imaging method
| Autor: | Siyuan Yu, Rongbin Su, Xue-Hua Wang, Ze-Sheng Chen, Shunfa Liu, Ben Ma, Rong-Ling Su, Haiqiao Ni, Yuming Wei, Yujia Wei, Zhichuan Niu, Ying Yu |
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| Rok vydání: | 2017 |
| Předmět: |
Brightness
Photoluminescence Materials science Science Physics::Optics 02 engineering and technology 01 natural sciences Article law.invention law 0103 physical sciences 010306 general physics Multidisciplinary business.industry Resonance 021001 nanoscience & nanotechnology Distributed Bragg reflector Numerical aperture Lens (optics) Quantum dot Single-photon source Optoelectronics Medicine 0210 nano-technology business |
| Zdroj: | Scientific Reports Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017) Liu, S, Wei, Y, Su, R, Su, R, Ma, B, Chen, Z, Ni, H, Niu, Z, Yu, Y, Wei, Y, Wang, X & Yu, S 2017, ' A deterministic quantum dot micropillar single photon source with >65% extraction efficiency based on fluorescence imaging method ', Scientific Reports, vol. 7, no. 1, 13986 . https://doi.org/10.1038/s41598-017-13433-w |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-017-13433-w |
| Popis: | We report optical positioning of single quantum dots (QDs) in planar distributed Bragg reflector (DBR) cavity with an average position uncertainty of ≈20 nm using an optimized photoluminescence imaging method. We create single-photon sources based on these QDs in determined micropillar cavities. The brightness of the QD fluorescence is greatly enhanced on resonance with the fundamental mode of the cavity, leading to an high extraction efficiency of 68% ± 6% into a lens with numerical aperture of 0.65, and simultaneously exhibiting low multi-photon probability (g(2)(0) = 0.144 ± 0.012) at this collection efficiency. |
| Databáze: | OpenAIRE |
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