Cavity-enhanced storage in an optical spin-wave memory
We report on the experimental demonstration of an optical spin-wave memory, based on the atomic frequency comb (AFC) scheme, where the storage efficiency is strongly enhanced by an optical cavity. The cavity is of low finesse, but operated in an impedance matching regime to achieve high absorption i...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2014-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/16/8/083005 |
| _version_ | 1797751386276888576 |
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| author | P Jobez I Usmani N Timoney C Laplane N Gisin M Afzelius |
| author_facet | P Jobez I Usmani N Timoney C Laplane N Gisin M Afzelius |
| author_sort | P Jobez |
| collection | DOAJ |
| description | We report on the experimental demonstration of an optical spin-wave memory, based on the atomic frequency comb (AFC) scheme, where the storage efficiency is strongly enhanced by an optical cavity. The cavity is of low finesse, but operated in an impedance matching regime to achieve high absorption in our intrinsically low-absorbing Eu ^3+ :Y _2 SiO _5 crystal. For storage of optical pulses as an optical excitation (AFC echoes), we reach efficiencies of 53% and 28% for 2 μ s and 10 μ s delays, respectively. For a complete AFC spin-wave memory we reach an efficiency of 12%, including spin-wave dephasing, which is a 12-fold increase with respect to previous results in this material. This result is an important step towards the goal of making efficient and long-lived quantum memories based on spin waves, in the context of quantum repeaters and quantum networks. |
| first_indexed | 2024-03-12T16:47:44Z |
| format | Article |
| id | doaj.art-8ea4ea4a45b647b299b6031eebba6453 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:47:44Z |
| publishDate | 2014-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-8ea4ea4a45b647b299b6031eebba64532023-08-08T11:29:40ZengIOP PublishingNew Journal of Physics1367-26302014-01-0116808300510.1088/1367-2630/16/8/083005Cavity-enhanced storage in an optical spin-wave memoryP Jobez0I Usmani1N Timoney2C Laplane3N Gisin4M Afzelius5Group of Applied Physics, University of Geneva , Geneva, SwitzerlandGroup of Applied Physics, University of Geneva , Geneva, SwitzerlandGroup of Applied Physics, University of Geneva , Geneva, SwitzerlandGroup of Applied Physics, University of Geneva , Geneva, SwitzerlandGroup of Applied Physics, University of Geneva , Geneva, SwitzerlandGroup of Applied Physics, University of Geneva , Geneva, SwitzerlandWe report on the experimental demonstration of an optical spin-wave memory, based on the atomic frequency comb (AFC) scheme, where the storage efficiency is strongly enhanced by an optical cavity. The cavity is of low finesse, but operated in an impedance matching regime to achieve high absorption in our intrinsically low-absorbing Eu ^3+ :Y _2 SiO _5 crystal. For storage of optical pulses as an optical excitation (AFC echoes), we reach efficiencies of 53% and 28% for 2 μ s and 10 μ s delays, respectively. For a complete AFC spin-wave memory we reach an efficiency of 12%, including spin-wave dephasing, which is a 12-fold increase with respect to previous results in this material. This result is an important step towards the goal of making efficient and long-lived quantum memories based on spin waves, in the context of quantum repeaters and quantum networks.https://doi.org/10.1088/1367-2630/16/8/083005quantum communicationphotonic memorycavity-enhanced light-matter interactionsrare-earth-ion doped crystals |
| spellingShingle | P Jobez I Usmani N Timoney C Laplane N Gisin M Afzelius Cavity-enhanced storage in an optical spin-wave memory New Journal of Physics quantum communication photonic memory cavity-enhanced light-matter interactions rare-earth-ion doped crystals |
| title | Cavity-enhanced storage in an optical spin-wave memory |
| title_full | Cavity-enhanced storage in an optical spin-wave memory |
| title_fullStr | Cavity-enhanced storage in an optical spin-wave memory |
| title_full_unstemmed | Cavity-enhanced storage in an optical spin-wave memory |
| title_short | Cavity-enhanced storage in an optical spin-wave memory |
| title_sort | cavity enhanced storage in an optical spin wave memory |
| topic | quantum communication photonic memory cavity-enhanced light-matter interactions rare-earth-ion doped crystals |
| url | https://doi.org/10.1088/1367-2630/16/8/083005 |
| work_keys_str_mv | AT pjobez cavityenhancedstorageinanopticalspinwavememory AT iusmani cavityenhancedstorageinanopticalspinwavememory AT ntimoney cavityenhancedstorageinanopticalspinwavememory AT claplane cavityenhancedstorageinanopticalspinwavememory AT ngisin cavityenhancedstorageinanopticalspinwavememory AT mafzelius cavityenhancedstorageinanopticalspinwavememory |