Title:
PHYSICAL QUANTITY DETECTION DEVICE, PHYSICAL QUANTITY DETECTION METHOD, AND PHYSICAL QUANTITY DETECTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/048530
Kind Code:
A1
Abstract:
The present invention can improve the detection accuracy of detecting a physical quantity using a quantum sensor. This physical quantity detection device 1 comprises: a quantum sensor 2 which has spin defects 2a; an excitation unit 4 which imparts excitation energy to the spin defects 2a; an electromagnetic wave incident unit 3 which causes a resonant electromagnetic wave for the ground level of the spin defects 2a and a multiphoton absorption electromagnetic wave of the spin defects 2a to be incident to the spin defects 2a; and an optical detection unit 5 which detects the light emission intensity of the spin defects 2a when receiving the excitation energy, the resonant electromagnetic wave for the ground level and multiphoton absorption electromagnetic wave, wherein the physical quantity detection device detects a physical quantity on the basis of the light emission intensity detected by the optical detection unit 5. The multiphoton absorption electromagnetic wave has different frequencies from the resonant electromagnetic wave for the ground level, and is determined on the basis of the resonant electromagnetic wave for the ground level.
More Like This:
Inventors:
YAMAZAKI YUICHI (JP)
HARII KAZUYA (JP)
MASUYAMA YUTA (JP)
OHSHIMA TAKESHI (JP)
HARII KAZUYA (JP)
MASUYAMA YUTA (JP)
OHSHIMA TAKESHI (JP)
Application Number:
PCT/JP2023/031022
Publication Date:
March 07, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
NATIONAL INSTITUTES FOR QUANTUM SCIENCE AND TECH (JP)
International Classes:
G01R33/20; G01N24/10; G01R33/26
Domestic Patent References:
| WO2020071383A1 | 2020-04-09 |
Other References:
YAMAZAKI YUICHI, Y. MASUYAMA, K. KOJIMA, H. TSUCHIDA, N. HOSHINO, T. OHSHIMA: " High-sensitive temperature measurement by silicon vacancy quantum sensor using simultaneous resonance of ground and excited states", EXTENDED ABSTRACTS OF THE 69TH JSAP SPRING MEETING, 25 March 2022 (2022-03-25), pages 100000000 - 151, XP093145038, Retrieved from the Internet [retrieved on 20240325]
Attorney, Agent or Firm:
NISHIHARA, Hironori (JP)
Download PDF: