Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron
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 ^40 Ca ^+ ion serves as a localized and positioned probe of the exciting field. We drive the ${S}_{1/2}\to {D}_{5/2}$ transition and observe the relat...
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Format: | Article |
Language: | English |
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IOP Publishing
2018-01-01
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Series: | New Journal of Physics |
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Online Access: | https://doi.org/10.1088/1367-2630/aaa63d |
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author | Andrei Afanasev Carl E Carlson Christian T Schmiegelow Jonas Schulz Ferdinand Schmidt-Kaler Maria Solyanik |
author_facet | Andrei Afanasev Carl E Carlson Christian T Schmiegelow Jonas Schulz Ferdinand Schmidt-Kaler Maria Solyanik |
author_sort | Andrei Afanasev |
collection | DOAJ |
description | 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 ^40 Ca ^+ ion serves as a localized and positioned probe of the exciting field. We drive the ${S}_{1/2}\to {D}_{5/2}$ 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. |
first_indexed | 2024-03-12T16:36:25Z |
format | Article |
id | doaj.art-63a4e4174c2946aba4943ef7ea99d5e4 |
institution | Directory Open Access Journal |
issn | 1367-2630 |
language | English |
last_indexed | 2024-03-12T16:36:25Z |
publishDate | 2018-01-01 |
publisher | IOP Publishing |
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series | New Journal of Physics |
spelling | doaj.art-63a4e4174c2946aba4943ef7ea99d5e42023-08-08T14:51:14ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120202303210.1088/1367-2630/aaa63dExperimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electronAndrei Afanasev0https://orcid.org/0000-0003-0679-3307Carl E Carlson1Christian T Schmiegelow2Jonas Schulz3Ferdinand Schmidt-Kaler4Maria Solyanik5Department of Physics, The George Washington University , Washington, DC 20052, United States of AmericaDepartment of Physics, The College of William and Mary in Virginia , Williamsburg, VA 23187, United States of AmericaQUANTUM, Institut für Physik, Universität Mainz , Staudingerweg 7, D-55128 Mainz, Germany; Departamento de Fisica, FCEyN, UBA and IFIBA, Conicet, Pabellon 1, Ciudad Universitaria, 1428 Buenos Aires, ArgentinaQUANTUM, Institut für Physik, Universität Mainz , Staudingerweg 7, D-55128 Mainz, GermanyQUANTUM, Institut für Physik, Universität Mainz , Staudingerweg 7, D-55128 Mainz, GermanyDepartment of Physics, The George Washington University , Washington, DC 20052, United States of AmericaWe analyze the multipole excitation of atoms with twisted light, i.e, by a vortex light field that carries orbital angular momentum. A single trapped ^40 Ca ^+ ion serves as a localized and positioned probe of the exciting field. We drive the ${S}_{1/2}\to {D}_{5/2}$ 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.https://doi.org/10.1088/1367-2630/aaa63doptical vorticesoptical angular momentumquantum selection rulesion trapsRabi oscillations |
spellingShingle | Andrei Afanasev Carl E Carlson Christian T Schmiegelow Jonas Schulz Ferdinand Schmidt-Kaler Maria Solyanik Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron New Journal of Physics optical vortices optical angular momentum quantum selection rules ion traps Rabi oscillations |
title | Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron |
title_full | Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron |
title_fullStr | Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron |
title_full_unstemmed | Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron |
title_short | Experimental verification of position-dependent angular-momentum selection rules for absorption of twisted light by a bound electron |
title_sort | experimental verification of position dependent angular momentum selection rules for absorption of twisted light by a bound electron |
topic | optical vortices optical angular momentum quantum selection rules ion traps Rabi oscillations |
url | https://doi.org/10.1088/1367-2630/aaa63d |
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