Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3
We report on the coupling of the emission from a single europium-doped nanocrystal to a fiber-based microcavity under cryogenic conditions. As a first step, we study the properties of nanocrystals that are relevant for cavity experiments and show that embedding them in a dielectric thin film can sig...
| Main Authors: | , , , , , , , , , |
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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 |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aadf68 |
| _version_ | 1827873356132646912 |
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| author | Bernardo Casabone Julia Benedikter Thomas Hümmer Franziska Oehl Karmel de Oliveira Lima Theodor W Hänsch Alban Ferrier Philippe Goldner Hugues de Riedmatten David Hunger |
| author_facet | Bernardo Casabone Julia Benedikter Thomas Hümmer Franziska Oehl Karmel de Oliveira Lima Theodor W Hänsch Alban Ferrier Philippe Goldner Hugues de Riedmatten David Hunger |
| author_sort | Bernardo Casabone |
| collection | DOAJ |
| description | We report on the coupling of the emission from a single europium-doped nanocrystal to a fiber-based microcavity under cryogenic conditions. As a first step, we study the properties of nanocrystals that are relevant for cavity experiments and show that embedding them in a dielectric thin film can significantly reduce scattering loss and increase the light–matter coupling strength for dopant ions. The latter is supported by the observation of a fluorescence lifetime reduction, which is explained by an increased local field strength. We then couple an isolated nanocrystal to an optical microcavity, determine its size and ion number, and perform cavity-enhanced spectroscopy by resonantly coupling a cavity mode to a selected transition. We measure the inhomogeneous linewidth of the coherent ${}^{5}{D}_{0}\mbox{--}{}^{7}{F}_{0}\,$ transition and find a value that agrees with the linewidth in bulk crystals, evidencing a high crystal quality. We detect the fluorescence from an ensemble of few ions in the regime of power broadening and observe an increased fluorescence rate consistent with Purcell enhancement. The results represent an important step towards the efficient readout of single rare earth ions with excellent optical and spin coherence properties, which is promising for applications in quantum communication and distributed quantum computation. |
| first_indexed | 2024-03-12T16:35:51Z |
| format | Article |
| id | doaj.art-c59c20e988744ff183ba18c8dba98b96 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:35:51Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-c59c20e988744ff183ba18c8dba98b962023-08-08T14:54:16ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120909500610.1088/1367-2630/aadf68Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3Bernardo Casabone0https://orcid.org/0000-0002-3695-7539Julia Benedikter1Thomas Hümmer2Franziska Oehl3Karmel de Oliveira Lima4Theodor W Hänsch5Alban Ferrier6Philippe Goldner7Hugues de Riedmatten8https://orcid.org/0000-0002-4418-0723David Hunger9https://orcid.org/0000-0001-6156-6145ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology , 08860 Castelldefels, Barcelona, Spain; Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D-85748 Garching, GermanyMax-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany; Fakultät für Physik, Ludwig-Maximilians-Universität , Schellingstraße 4, D-80799 München, Germany; Karlsruher Institut für Technologie, Physikalisches Institut, Wolfgang-Gaede-Str. 1, D-76131 Karlsruhe, GermanyMax-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany; Fakultät für Physik, Ludwig-Maximilians-Universität , Schellingstraße 4, D-80799 München, GermanyFakultät für Physik, Ludwig-Maximilians-Universität , Schellingstraße 4, D-80799 München, GermanyUniversité PSL , Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, F-75005 Paris, FranceMax-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany; Fakultät für Physik, Ludwig-Maximilians-Universität , Schellingstraße 4, D-80799 München, GermanyUniversité PSL , Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, F-75005 Paris, France; Sorbonne Université , F-75005 Paris, FranceUniversité PSL , Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, F-75005 Paris, France; Sorbonne Université , F-75005 Paris, FranceICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology , 08860 Castelldefels, Barcelona, Spain; ICREA-Institució Catalana de Recerca i Estudis Avançats, E-08015 Barcelona, SpainKarlsruher Institut für Technologie, Physikalisches Institut, Wolfgang-Gaede-Str. 1, D-76131 Karlsruhe, GermanyWe report on the coupling of the emission from a single europium-doped nanocrystal to a fiber-based microcavity under cryogenic conditions. As a first step, we study the properties of nanocrystals that are relevant for cavity experiments and show that embedding them in a dielectric thin film can significantly reduce scattering loss and increase the light–matter coupling strength for dopant ions. The latter is supported by the observation of a fluorescence lifetime reduction, which is explained by an increased local field strength. We then couple an isolated nanocrystal to an optical microcavity, determine its size and ion number, and perform cavity-enhanced spectroscopy by resonantly coupling a cavity mode to a selected transition. We measure the inhomogeneous linewidth of the coherent ${}^{5}{D}_{0}\mbox{--}{}^{7}{F}_{0}\,$ transition and find a value that agrees with the linewidth in bulk crystals, evidencing a high crystal quality. We detect the fluorescence from an ensemble of few ions in the regime of power broadening and observe an increased fluorescence rate consistent with Purcell enhancement. The results represent an important step towards the efficient readout of single rare earth ions with excellent optical and spin coherence properties, which is promising for applications in quantum communication and distributed quantum computation.https://doi.org/10.1088/1367-2630/aadf68solid state quantum memoriesquantum networksfiber-based microcavitysingle ion detectioneuropium-doped nanocrystal |
| spellingShingle | Bernardo Casabone Julia Benedikter Thomas Hümmer Franziska Oehl Karmel de Oliveira Lima Theodor W Hänsch Alban Ferrier Philippe Goldner Hugues de Riedmatten David Hunger Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3 New Journal of Physics solid state quantum memories quantum networks fiber-based microcavity single ion detection europium-doped nanocrystal |
| title | Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3 |
| title_full | Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3 |
| title_fullStr | Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3 |
| title_full_unstemmed | Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3 |
| title_short | Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3 |
| title_sort | cavity enhanced spectroscopy of a few ion ensemble in eu3 y2o3 |
| topic | solid state quantum memories quantum networks fiber-based microcavity single ion detection europium-doped nanocrystal |
| url | https://doi.org/10.1088/1367-2630/aadf68 |
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