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Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron

Afanasev A, Carlson CE, Schmiegelow CT, Schulz J, Schmidt-Kaler F, Solyanik M (2018)

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Publication Type: Journal article

Publication year: 2018

Journal

Book Volume: 20

Article Number: 023032

Journal Issue: 2

DOI: 10.1088/1367-2630/aaa63d

Abstract

We analyze the multipole excitation of atoms with twisted light, i.e, by a vortex light field that carries orbital angular momentum. A single trapped ⁴⁰Ca⁺ ion serves as a localized and positioned probe of the exciting field. We drive the transition and observe the relative strengths of different transitions, depending on the ion's transversal position with respect to the center of the vortex light field. On the other hand, transition amplitudes are calculated for a twisted light field in form of a Bessel beam, a Bessel-Gauss and a Laguerre-Gauss mode. Analyzing experimental obtained transition amplitudes we find agreement with the theoretical predictions at a level of better than 3%. Finally, we propose measurement schemes with two-ion crystals to enhance the sensing accuracy of vortex modes in future experiments.

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How to cite

APA:

Afanasev, A., Carlson, C.E., Schmiegelow, C.T., Schulz, J., Schmidt-Kaler, F., & Solyanik, M. (2018). Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron. New Journal of Physics, 20(2). https://doi.org/10.1088/1367-2630/aaa63d

MLA:

Afanasev, Andrei, et al. "Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron." New Journal of Physics 20.2 (2018).

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