arXiv:physics/0210107 · Physical Review A

Nonlinear magneto-optical rotation of elliptically polarized light

Andrey B. Matsko, Irina V. Novikova, Muhammad Suhail Zubairy, George R. Welch

Published Apr 11, 2003• 47 citations

Abstract

We predict theoretically and demonstrate experimentally an ellipticity-dependent nonlinear magneto-optic rotation of elliptically polarized light propagating in a medium with atomic coherence. We show that this effect results from hexadecapole and higher-order moments of the atomic coherence, and is associated with an enhancement of Kerr and higher-order nonlinearities accompanied by suppression of the other linear and nonlinear susceptibility terms of the medium. These nonlinearities might be useful for quantum signal processing. In particular, we report an observation of enhancement of the polarization rotation of elliptically polarized light resonant with the ${5S}_{1/2}F=\stackrel{\ensuremath{\rightarrow}}{2}{5P}_{1/2}F=1$ transition of ${}^{87}\mathrm{Rb}.$

DOI: 10.1103/physreva.67.043805

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arXiv:physics/0210107 · Physical Review A

Nonlinear magneto-optical rotation of elliptically polarized light

Andrey B. Matsko, Irina V. Novikova, Muhammad Suhail Zubairy, George R. Welch

Published Apr 11, 2003• 47 citations

arXiv HTML PDF

Abstract

{5S}_{1/2}F=\stackrel{\ensuremath{\rightarrow}}{2}{5P}_{1/2}F=1

transition of

{}^{87}\mathrm{Rb}.

DOI: 10.1103/physreva.67.043805

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Andrey B. Matsko, Irina V. Novikova, George R. Welch +1 more

arXiv:quant-ph/0207141Optics LettersJan 15, 2003124 citations

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{5S}_{1/2}F=\stackrel{\ensuremath{\rightarrow}}{2}{5P}_{1/2}F=1

transition of

{}^{87}\mathrm{Rb}.

\mathbf{B}

and the major axis of the light polarization ellipse is along

\mathbf{B}

. When the light modulation frequency matches the Larmor frequency, elliptically polarized light produces a precessing atomic spin orientation transverse to

\mathbf{B}

via synchronous optical pumping. The precessing spin orientation causes optical rotation oscillating at the Larmor frequency by modulating the atomic vapor's circular birefringence. Based on this technique's precision, in situ nature (which avoids systematic errors arising from optical interfaces) and independent control of the most important systematic errors, it is shown that the accuracy of light ellipticity measurements achievable with this technique can exceed that of existing methods by orders of magnitude.