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|Author(s):||William C. Griffith; Svenja A. Knappe; John E. Kitching;|
|Title:||Femtotesla atomic magnetometry in a microfabricated vapor cell|
|Published:||December 20, 2010|
|Abstract:||We describe an optically pumped 87Rb magnetometer with 4.5 fT/Hz1/2 sensitivity when operated in the spin-exchange relaxation free (SERF) regime. The magnetometer uses a microfabricated vapor cell, consisting of a cavity etched in a 1 mm thick silicon wafer with anodically bonded pyrex windows. The measurement volume of the magnetometer is 1 mm3, defined by the overlap region of a circularly polarized pump laser, and a linearly polarized probe laser, both operated near 795 nm. Sensitivity limitations unique to the use of microfabricated cells are discussed.|
|Pages:||pp. 27167 - 27172|
|Keywords:||atomic magnetometer,CSAM,microfabricated magnetometer|
|Research Areas:||Physics, Atomic Physics|
|PDF version:||Click here to retrieve PDF version of paper (877KB)|