US 12,449,457 B2
Diamond sensor unit
Yoshiki Nishibayashi, Osaka (JP); Hiromi Nakanishi, Osaka (JP); Hiroshige Deguchi, Kyoto (JP); Tsukasa Hayashi, Kyoto (JP); and Natsuo Tatsumi, Kyoto (JP)
Assigned to Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 18/273,313
Filed by SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Jan. 26, 2022, PCT No. PCT/JP2022/002766
§ 371(c)(1), (2) Date Jul. 20, 2023,
PCT Pub. No. WO2022/163679, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. 2021-010937 (JP), filed on Jan. 27, 2021.
Prior Publication US 2024/0118327 A1, Apr. 11, 2024
Int. Cl. G01R 29/08 (2006.01); G01R 1/24 (2006.01)
CPC G01R 29/0878 (2013.01) [G01R 1/24 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A diamond sensor unit, comprising:
a diamond having a color center with electron spin;
an excitation light irradiation part configured to irradiates the diamond with excitation light;
a first patch antenna configured to receives electromagnetic waves;
an electromagnetic wave irradiation part provided separately from the first patch antenna and configured to irradiates the diamond with the electromagnetic waves received by the first patch antenna via a transmission path;
a detection part configured to detects radiated light radiated from the color center of the diamond after the diamond is irradiated with the excitation light and the electromagnetic waves; and
an optical waveguide configured to transmits the excitation light and the radiated light.