Single-photon sources in diamond, silicon carbide and gallium nitride
Solid-state single-photon sources are the central blocks for many scalable quantum applications including quantum computing, quantum key distributions, and quantum simulations. Over the years, diverse quantum emitters have been studied. This thesis endeavored investigations into single-photon source...
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| Format: | Thesis |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/82980 http://hdl.handle.net/10220/47535 |
| _version_ | 1811695510416785408 |
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| author | Zhou, Yu |
| author2 | Gao Weibo |
| author_facet | Gao Weibo Zhou, Yu |
| author_sort | Zhou, Yu |
| collection | NTU |
| description | Solid-state single-photon sources are the central blocks for many scalable quantum applications including quantum computing, quantum key distributions, and quantum simulations. Over the years, diverse quantum emitters have been studied. This thesis endeavored investigations into single-photon sources in diamond, silicon carbide and gallium nitride in three directions:
Firstly, identification of the single-photon sources that have never been reported before and fabrication technique for scalable single germanium vacancy centers in diamond. Telecom wavelength single photon sources have been found in both gallium nitride and silicon carbide. More importantly, those emitters work even at room temperature and are promising for quantum key distribution applications in the future.
Secondly, the spin properties study of the single silicon vacancy in diamond: the silicon vacancy optical transition has been coherently controlled in the work. The optical Rabi oscillations in the time domain have been observed. The ultrafast spin control of the silicon vacancy has been also achieved.
Thirdly, quantum applications of the divacancy spins in silicon carbide: nano-scale thermometry based on the quantum control of the divacancy spin in silicon carbide has been introduced. Especially, we found a self-protected effect that the transverse strain can protect the spin from the local magnetic field and enables longer coherence time.
Finally, some possible directions have been discussed. |
| first_indexed | 2024-10-01T07:24:37Z |
| format | Thesis |
| id | ntu-10356/82980 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:24:37Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/829802023-02-28T23:54:03Z Single-photon sources in diamond, silicon carbide and gallium nitride Zhou, Yu Gao Weibo School of Physical and Mathematical Sciences DRNTU::Science::Physics::Atomic physics::Solid state physics Solid-state single-photon sources are the central blocks for many scalable quantum applications including quantum computing, quantum key distributions, and quantum simulations. Over the years, diverse quantum emitters have been studied. This thesis endeavored investigations into single-photon sources in diamond, silicon carbide and gallium nitride in three directions: Firstly, identification of the single-photon sources that have never been reported before and fabrication technique for scalable single germanium vacancy centers in diamond. Telecom wavelength single photon sources have been found in both gallium nitride and silicon carbide. More importantly, those emitters work even at room temperature and are promising for quantum key distribution applications in the future. Secondly, the spin properties study of the single silicon vacancy in diamond: the silicon vacancy optical transition has been coherently controlled in the work. The optical Rabi oscillations in the time domain have been observed. The ultrafast spin control of the silicon vacancy has been also achieved. Thirdly, quantum applications of the divacancy spins in silicon carbide: nano-scale thermometry based on the quantum control of the divacancy spin in silicon carbide has been introduced. Especially, we found a self-protected effect that the transverse strain can protect the spin from the local magnetic field and enables longer coherence time. Finally, some possible directions have been discussed. Doctor of Philosophy 2019-01-22T04:56:00Z 2019-12-06T15:09:29Z 2019-01-22T04:56:00Z 2019-12-06T15:09:29Z 2018 Thesis Zhou, Y. (2018). Single-photon sources in diamond, silicon carbide and gallium nitride. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/82980 http://hdl.handle.net/10220/47535 10.32657/10220/47535 en 123 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics::Solid state physics Zhou, Yu Single-photon sources in diamond, silicon carbide and gallium nitride |
| title | Single-photon sources in diamond, silicon carbide and gallium nitride |
| title_full | Single-photon sources in diamond, silicon carbide and gallium nitride |
| title_fullStr | Single-photon sources in diamond, silicon carbide and gallium nitride |
| title_full_unstemmed | Single-photon sources in diamond, silicon carbide and gallium nitride |
| title_short | Single-photon sources in diamond, silicon carbide and gallium nitride |
| title_sort | single photon sources in diamond silicon carbide and gallium nitride |
| topic | DRNTU::Science::Physics::Atomic physics::Solid state physics |
| url | https://hdl.handle.net/10356/82980 http://hdl.handle.net/10220/47535 |
| work_keys_str_mv | AT zhouyu singlephotonsourcesindiamondsiliconcarbideandgalliumnitride |