Patent Number: 7,826,065

Title: Tuned optical cavity magnetometer

Abstract: An atomic magnetometer is disclosed which utilizes an optical cavity formed from a grating and a mirror, with a vapor cell containing an alkali metal vapor located inside the optical cavity. Lasers are used to magnetically polarize the alkali metal vapor and to probe the vapor and generate a diffracted laser beam which can be used to sense a magnetic field. Electrostatic actuators can be used in the magnetometer for positioning of the mirror, or for modulation thereof. Another optical cavity can also be formed from the mirror and a second grating for sensing, adjusting, or stabilizing the position of the mirror.

Inventors: Okandan; Murat (Edgewood, NM), Schwindt; Peter (Albuquerque, NM)

Assignee: Sandia Corporation

International Classification: G01B 11/02 (20060101); G01R 33/12 (20060101)

Expiration Date: 2019-11-02 0:00:00