Journal
MICROMACHINES
Volume 13, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/mi13071007
Keywords
uniformity; high-bandwidth; radiation antenna; ensemble NV color centers
Categories
Funding
- Special Fund for Research on National Major Research Instruments and Facilities of the National Natural Science Foundation of China [51727808, 61727804]
- National Natural Science Foundation of China [62103385, 51635011, 62175219, 51821003]
- Key Laboratory of Shanxi Province, China [201905D121001]
- Fund for Shanxi 1331 Project Key Subjects Construction, China
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This paper presents a hollow omega-type antenna design for diamond nitrogen-vacancy (NV) ensemble color center imaging, which provides high-efficiency, large-bandwidth, and uniform magnetic field radiation. Compared with a straight copper antenna, the proposed antenna has significantly higher radiation efficiency and bandwidth, demonstrating its effectiveness for achieving high-precision wide-field imaging.
Radiation with high-efficiency, large-bandwidth, and uniform magnetic field radiation antennas in a large field of view are the key to achieving high-precision wide-field imaging. This paper presents a hollow omega-type antenna design for diamond nitrogen-vacancy (NV) ensemble color center imaging. The uniformity of the antenna reaches 94% in a 4.4 x 4.4 mm(2) area. Compared with a straight copper antenna, the radiation efficiency of the proposed antenna is 71.8% higher, and the bandwidth is improved by 11.82 times, demonstrating the effectiveness of the hollow omega-type antenna.
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