期刊
APPLIED PHYSICS LETTERS
卷 107, 期 16, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4933103
关键词
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资金
- JST-CREST
- MEXT/JSPS KAKENHI [26630125, 25289086]
- MEXT-Nanotechnology platform [12025014 (F-14-IT-0037)]
- JSPS Core-to-Core Program A. Advanced Research Network
- Grants-in-Aid for Scientific Research [14J10949, 25289086, 26630125] Funding Source: KAKEN
We present umbrella-shaped diamond microstructures with metal mirrors at the bottom in order to improve the amount of collected photons from nitrogen vacancy centers. The metal mirrors at the bottom are self-aligned to the umbrella-shaped diamond microstructures which are selectively grown through holes created on a metal mask. By the finite-difference time-domain simulations, we found that the umbrella-shaped microstructures, which have an effect similar to solid immersion lens, could collect photons more efficiently than bulk or pillar-shaped microstructures. Improvement of the fluorescence intensity by factors of from 3 to 5 is shown experimentally. (C) 2015 AIP Publishing LLC.
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