Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity
In this work, we develop single-mode fiber devices of an InAs/GaAs quantum dot (QD) by bonding a fiber array with large smooth facet, small core, and small numerical aperture to QDs in a distributed Bragg reflector planar cavity with vertical light extraction that prove mode overlap and efficient ou...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/7/1219 |
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| author | Xiangjun Shang Shulun Li Hanqing Liu Xiangbin Su Huiming Hao Deyan Dai Xiaoming Li Yuanyuan Li Yuanfei Gao Xiuming Dou Haiqiao Ni Zhichuan Niu |
| author_facet | Xiangjun Shang Shulun Li Hanqing Liu Xiangbin Su Huiming Hao Deyan Dai Xiaoming Li Yuanyuan Li Yuanfei Gao Xiuming Dou Haiqiao Ni Zhichuan Niu |
| author_sort | Xiangjun Shang |
| collection | DOAJ |
| description | In this work, we develop single-mode fiber devices of an InAs/GaAs quantum dot (QD) by bonding a fiber array with large smooth facet, small core, and small numerical aperture to QDs in a distributed Bragg reflector planar cavity with vertical light extraction that prove mode overlap and efficient output for plug-and-play stable use and extensive study. Modulated Si doping as electron reservoir builds electric field and level tunnel coupling to reduce fine-structure splitting (FSS) and populate dominant XX and higher excitons XX<sup>+</sup> and XXX. Epoxy package thermal stress induces light hole (lh) with various behaviors related to the donor field: lh h<sub>1</sub> confined with more anisotropy shows an additional X<sub>Z</sub> line (its space to the traditional X lines reflects the field intensity) and larger FSS; lh h<sub>2</sub> delocalized to wetting layer shows a fast h<sub>2</sub>–h<sub>1</sub> decay; lh h<sub>2</sub> confined shows D<sub>3h</sub> symmetric higher excitons with slow h<sub>2</sub>–h<sub>1</sub> decay and more confined h<sub>1</sub> to raise h<sub>1</sub>–h<sub>1</sub> Coulomb interaction. |
| first_indexed | 2024-03-09T11:34:00Z |
| format | Article |
| id | doaj.art-e9dc848ea06d490fb4743f5a914103f8 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:34:00Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-e9dc848ea06d490fb4743f5a914103f82023-11-30T23:46:13ZengMDPI AGNanomaterials2079-49912022-04-01127121910.3390/nano12071219Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector CavityXiangjun Shang0Shulun Li1Hanqing Liu2Xiangbin Su3Huiming Hao4Deyan Dai5Xiaoming Li6Yuanyuan Li7Yuanfei Gao8Xiuming Dou9Haiqiao Ni10Zhichuan Niu11State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaBeijing Academy of Quantum Information Sciences, Beijing 100193, ChinaBeijing Academy of Quantum Information Sciences, Beijing 100193, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaIn this work, we develop single-mode fiber devices of an InAs/GaAs quantum dot (QD) by bonding a fiber array with large smooth facet, small core, and small numerical aperture to QDs in a distributed Bragg reflector planar cavity with vertical light extraction that prove mode overlap and efficient output for plug-and-play stable use and extensive study. Modulated Si doping as electron reservoir builds electric field and level tunnel coupling to reduce fine-structure splitting (FSS) and populate dominant XX and higher excitons XX<sup>+</sup> and XXX. Epoxy package thermal stress induces light hole (lh) with various behaviors related to the donor field: lh h<sub>1</sub> confined with more anisotropy shows an additional X<sub>Z</sub> line (its space to the traditional X lines reflects the field intensity) and larger FSS; lh h<sub>2</sub> delocalized to wetting layer shows a fast h<sub>2</sub>–h<sub>1</sub> decay; lh h<sub>2</sub> confined shows D<sub>3h</sub> symmetric higher excitons with slow h<sub>2</sub>–h<sub>1</sub> decay and more confined h<sub>1</sub> to raise h<sub>1</sub>–h<sub>1</sub> Coulomb interaction.https://www.mdpi.com/2079-4991/12/7/1219InAs quantum dotfine structure splittingthermal stresslight hole levelphoton pairpolarization correlation |
| spellingShingle | Xiangjun Shang Shulun Li Hanqing Liu Xiangbin Su Huiming Hao Deyan Dai Xiaoming Li Yuanyuan Li Yuanfei Gao Xiuming Dou Haiqiao Ni Zhichuan Niu Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity Nanomaterials InAs quantum dot fine structure splitting thermal stress light hole level photon pair polarization correlation |
| title | Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity |
| title_full | Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity |
| title_fullStr | Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity |
| title_full_unstemmed | Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity |
| title_short | Single- and Twin-Photons Emitted from Fiber-Coupled Quantum Dots in a Distributed Bragg Reflector Cavity |
| title_sort | single and twin photons emitted from fiber coupled quantum dots in a distributed bragg reflector cavity |
| topic | InAs quantum dot fine structure splitting thermal stress light hole level photon pair polarization correlation |
| url | https://www.mdpi.com/2079-4991/12/7/1219 |
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