Title:
QUANTUM SENSOR USING RARE EARTH ION DOPED OPTICAL CRYSTAL AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/095102
Kind Code:
A1
Abstract:
A quantum sensor using a rare earth ion doped optical crystal (1), used for magnetic field sensing and electric field sensing, and a sensing method. The quantum sensor comprises: a rare earth ion doped optical crystal (1); a low temperature providing unit (2) providing a low temperature working environment to the rare earth ion doped optical crystal (1); a constant magnetic field generating unit (3) applying a constant magnetic field to the rare earth ion doped optical crystal (1); an optical field generating unit (4) providing an optical field for performing optical pumping on the rare earth ion doped optical crystal (1) in order to cause rare earth ions to be in an initial state of spinning, and providing an optical field for exciting a Raman scattered optical field of the rare earth ion doped optical crystal (1); a pulsed magnetic field generating unit (5) applying, to the rare earth ion doped optical crystal (1), a pulsed magnetic field perpendicular to the constant magnetic field to cause the rare earth ion doped optical crystal (1) to generate a spin echo; and a heterodyne Raman scattered light field detecting and analysis unit (6) detecting and analyzing a Raman scattered light field radiated from the rare earth ion doped optical crystal (1).
Inventors:
ZHOU ZONGQUAN (CN)
MA YU (CN)
TU TAO (CN)
LI CHUANFENG (CN)
GUO GUANGCAN (CN)
MA YU (CN)
TU TAO (CN)
LI CHUANFENG (CN)
GUO GUANGCAN (CN)
Application Number:
PCT/CN2017/110863
Publication Date:
May 23, 2019
Filing Date:
November 14, 2017
Export Citation:
Assignee:
UNIV SCIENCE & TECHNOLOGY CHINA (CN)
International Classes:
G01R33/02
Foreign References:
| US20090272887A1 | 2009-11-05 | |||
| CN104704375A | 2015-06-10 | |||
| CN103941199A | 2014-07-23 | |||
| CN105674982A | 2016-06-15 |
Other References:
MAZE J. R. ET AL.: "Nanoscale Magnetic Sensing with an Individual Electronic Spin in Diamond", NATURE, vol. 455, no. 7213, 2 October 2008 (2008-10-02), pages 644 - 648, XP055036129
WEINER JOSHUA M. ET AL.: "Superradiant Raman Laser Magnetometer", APPLIED PHYSICS LETTERS, vol. 101, 27 December 2012 (2012-12-27), pages 261107-1 - 261107-4, XP012168575
WEINER JOSHUA M. ET AL.: "Superradiant Raman Laser Magnetometer", APPLIED PHYSICS LETTERS, vol. 101, 27 December 2012 (2012-12-27), pages 261107-1 - 261107-4, XP012168575
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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