| アイテムタイプ |
会議発表用資料 / Presentation(1) |
| 公開日 |
2026-03-26 |
| タイトル |
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|
タイトル |
Lead-Vacancy Centers in Diamond Solid Immersion Lens Fabricated on HPHT-Treated Substrates |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_c94f |
|
資源タイプ |
conference presentation |
| 著者 |
K. Hirai
Y. Chen
T. Makino
T. Taniguchi
M. Miyakawa
Onoda Shinobu
M. Hatano
T. Iwasaki
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| 抄録 |
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内容記述 |
Lead-vacancy (PbV) centers in diamond are emerging as a promising quantum emitter for the implementation of large-scale quantum networks. The PbV center is expected to exhibit high robustness against temperature among group-Ⅳ vacancy centers due to the large ground state splitting, and thus to show qubit operation without a dilution refrigerator. However, the fluorescence enhancement using photonic structures remains a challenge for the high-quality PbV centers formed through high-pressure and high-temperature (HPHT) annealing. In this study, we demonstrate the fabrication of the diamond solid immersion lenses (SILs) incorporating PbV centers on rough HPHT-treated diamond substrates and the enhancement of the fluorescence intensity from the PbV centers. We employed focused ion beam to fabricate SILs with a diameter of ~1 um and a height of ~0.5 um. We confirmed the enhancement of the fluorescence intensity from PbV centers under non-resonant excitation. Furthermore, transform-limited linewidths were observed under resonant excitation. Our results will pave the way for further optical and spin measurements of the PbV centers. |
| 会議概要（会議名, 開催地, 会期, 主催者等） |
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内容記述 |
APS Global Physics Summit |
| 発表年月日 |
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|
日付 |
2026-03-17 |
