Article
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Preserved in Portico This version is not peer-reviewed
Quantum Applications of an Atomic Ensemble Inside a Laser Cavity
Version 1
: Received: 6 November 2023 / Approved: 7 November 2023 / Online: 7 November 2023 (11:10:42 CET)
A peer-reviewed article of this Preprint also exists.
Ben Amar Baranga, A.; Koganov, G.A.; Levron, D.; Bialolenker, G.; Shuker, R. Quantum Applications of an Atomic Ensemble Inside a Laser Cavity. Photonics 2024, 11, 46. Ben Amar Baranga, A.; Koganov, G.A.; Levron, D.; Bialolenker, G.; Shuker, R. Quantum Applications of an Atomic Ensemble Inside a Laser Cavity. Photonics 2024, 11, 46.
Abstract
Many quantum devices signals are proportional to the number of the participating atoms that take part in the detection devices. Among these are optical magnetometers, atomic clocks, and atoms interferometers. One way to enhance the signal to noise ratio is to introduce atoms entanglement that increases the signal in a super-radiant like effect. An initial novel experiment to test the realization of atoms correlation is described here. A Cs optical magnetometer is used as a tool to test the operation of a cell-in-cavity laser and its characteristics. A vapor cell is inserted in-to an elongated external cavity of the pump laser in Littrow configuration. Higher atom polarization and reduced laser linewidth are obtained leading to better magnetometer sensitivity and signal-to-noise ratio. The Larmor frequency changes of the Free Induction Decay of optically pumped Cs atomic polarization in ambient earth magnetic field at room temperature is measured. Temporal changes in the magnetic field of less than 10 pT/Hz are measured. The first order dependence of the magnetic field on temperature and temperature gradients is eliminated, important in many practical applications. Single and gradiometric magnetometer con-figurations are presented.
Keywords
sensing; coherent photon states; quantum correlations
Subject
Physical Sciences, Quantum Science and Technology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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