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Bulletin of the American Physical Society

Sub-femto-Tesla Scalar Atomic Magnetometer with Spin-squeezing

Dong Sheng, Shuguang Li, Nezih Dural, Michael V. Romalis

Published Jun 8, 2012• 0 citations
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SCALAR MULTI-PASS ATOMIC MAGNETOMETER

Michael V. Romalis, Thomas W. Kornack

Abstract : We investigated the feasibility of a femto-Tesla level scalar atomic magnetometer operating in Earths field. Our approach is unique in using multi-pass alkali-metal cells, quantum-non-demolition measurements, and suppression of spin-exchange relaxation to achieve the highest sensitivity per unit volume. We developed a new multi-pass cell geometry with a small internal volume and experimentally verified the predictions of our model for quantum spin noise. We also investigated the availability of pulsed pump and probe lasers to operate a high-sensitivity atomic magnetometer.

•Aug 1, 2017•0 citations
Abstract : We investigated the feasibility of a femto-Tesla level scalar atomic magnetometer operating in Earths field. Our approach is unique in using multi-pass alkali-metal cells, quantum-non-demolition measurements, and suppression of spin-exchange relaxation to achieve the highest sensitivity per unit volume. We developed a new multi-pass cell geometry with a small internal volume and experimentally verified the predictions of our model for quantum spin noise. We also investigated the availability of pulsed pump and probe lasers to operate a high-sensitivity atomic magnetometer.