Authors
Elena Zhivun, Michael Bulatowicz, Alexander Hryciuk, Thad Walker
Publication date
2018/5
Journal
APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
Volume
2018
Pages
M01. 060
Description
We present a new two-axis vector SERF magnetometer with suppressed technical 1/f noise on both sensitive axes. It reaches a probe sensitivity of 2 fT× Hz-1/2 (◯) and 8 fT× Hz-1/2 (ŷ) at 10 mHz, outperforming the DC SERF magnetometer in the same setup (27 fT× Hz-1/2). The lowest probe noise of 0.7 fT× Hz-1/2 (◯) and 1.5 fT× Hz-1/2 (ŷ) is reached at 10 Hz, comparable to the DC SERF probe noise at the same frequency (0.3 fT× Hz-1/2). The magnetometer operates by applying a superposition of a DC offset field and a π-pulse comb while remaining in the SERF regime. The resulting alkali precession signals for B x and B y fields are orthogonal to each other and synchronous to the pulse repetition rate.
Scholar articles
E Zhivun, M Bulatowicz, A Hryciuk, T Walker - APS Division of Atomic, Molecular and Optical Physics …, 2018