Title :
Chip scale atomic magnetometer based on SERF
Author :
Xing, Song ; Haifeng, Dong ; Jiancheng, Fang
Author_Institution :
Key Lab. of Fundamental Sci. for Nat. Defense, Beijing Univ. of Aeronaut. & Astronaut., Beijing
Abstract :
We are developing a new detection scheme for magnetometers based on atomic vapor confined in millimeter-scale micromachined enclosures and atomic Zeeman transitions. By adding three micro-reflective mirrors and modifying the light path arrangement, the new detection scheme effectively hurdles the main obstacle which prevents SERF from being applied in chip scale sensors, i.e. the difficulty to implement the transverse laser fields using MEMS fabrication methods. Instead of guiding the pumping laser beam parallel to the wafer plates that is not compatible with MEMS fabrication, such scheme rotates both pumping and probing laser beams, and maintains the orthogonal relationship between them. Finally, several fabrication process suited for this scheme are discussed.
Keywords :
Zeeman effect; laser beams; magnetometers; micromirrors; atomic Zeeman transitions; atomic vapor; chip scale atomic magnetometer; detection scheme; laser beam probing; laser beam pumping; light path arrangement; microreflective mirrors; millimeter-scale micromachined enclosures; spin exchange relaxation free method; Atomic beams; Laser beams; Laser excitation; Laser transitions; Magnetic confinement; Magnetometers; Micromechanical devices; Mirrors; Optical device fabrication; Pump lasers; Atomic Magnetometer; MEMS; Micro mirrors; SERF;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009. 4th IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4629-2
Electronic_ISBN :
978-1-4244-4630-8
DOI :
10.1109/NEMS.2009.5068566