Quantum control and enhancement of multi-color emissions in upconversion nanoparticles
Upconversion luminescence (UCL) of lanthanide-doped nanomaterials is usually a low-efficiency nonlinear process, involving multi-step, multi-channel transitions in a multi-level system. Here, we demonstrate quantum control and enhancement of multi-color (e.g., red and green) UCLs of NaYF4:Yb3+/Er3+...
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Veröffentlicht in: | Applied physics letters 2017-05, Vol.110 (22) |
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creator | Hao, Ye Li, Aihua Yang, Jun Gao, Wentao Sun, Zhijun |
description | Upconversion luminescence (UCL) of lanthanide-doped nanomaterials is usually a low-efficiency nonlinear process, involving multi-step, multi-channel transitions in a multi-level system. Here, we demonstrate quantum control and enhancement of multi-color (e.g., red and green) UCLs of NaYF4:Yb3+/Er3+ nanoparticles with metallic Fabry-Perot micro-cavities. Besides realization of controlled single-color UCLs, their internal quantum efficiencies are strongly enhanced, up to 3–4 orders of times. Experimental results indicate that the controlled single-color UCLs and enhancements are caused not only by modifications of the spontaneous radiation rates for the red- and green-color transitions but also by influencing the intermediate transitions to result in modified distributions of electrons in each of the multiple Er3+ levels, facilitating emission of either red- or green-color light. This work suggests a way to control photon emissions in systems with multi-channel transitions and/or multi-step excitations. |
doi_str_mv | 10.1063/1.4985131 |
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Here, we demonstrate quantum control and enhancement of multi-color (e.g., red and green) UCLs of NaYF4:Yb3+/Er3+ nanoparticles with metallic Fabry-Perot micro-cavities. Besides realization of controlled single-color UCLs, their internal quantum efficiencies are strongly enhanced, up to 3–4 orders of times. Experimental results indicate that the controlled single-color UCLs and enhancements are caused not only by modifications of the spontaneous radiation rates for the red- and green-color transitions but also by influencing the intermediate transitions to result in modified distributions of electrons in each of the multiple Er3+ levels, facilitating emission of either red- or green-color light. 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Here, we demonstrate quantum control and enhancement of multi-color (e.g., red and green) UCLs of NaYF4:Yb3+/Er3+ nanoparticles with metallic Fabry-Perot micro-cavities. Besides realization of controlled single-color UCLs, their internal quantum efficiencies are strongly enhanced, up to 3–4 orders of times. Experimental results indicate that the controlled single-color UCLs and enhancements are caused not only by modifications of the spontaneous radiation rates for the red- and green-color transitions but also by influencing the intermediate transitions to result in modified distributions of electrons in each of the multiple Er3+ levels, facilitating emission of either red- or green-color light. This work suggests a way to control photon emissions in systems with multi-channel transitions and/or multi-step excitations.</description><subject>Applied physics</subject><subject>Color</subject><subject>Erbium</subject><subject>Fabry-Perot interferometers</subject><subject>Nanomaterials</subject><subject>Nanoparticles</subject><subject>Upconversion</subject><subject>Ytterbium</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqdkE1LxDAQhoMouK4e_AcBTwrVTNMk7VEWv2BBBPUa0jTFLG1Sk3TBf2-WXfDuab6eeYd5EboEcguE0zu4rZqaAYUjtAAiREEB6mO0IITQgjcMTtFZjJtcspLSBfp8m5VL84i1dyn4ASvXYeO-lNNmNC5h3-NxHpIttB98wGa0MVrvIrYOz1Pe2pqwa2CnnJ9USFYPJp6jk14N0Vwc4hJ9PD68r56L9evTy-p-XWhailQYrYjuFGdt0_AeDAgOrWgJr7umaxQTXWO07mvIWQui5V21G2ujgVWGMrpEV3vdKfjv2cQkN34OLp-UJQAHKCtKMnW9p3TwMQbTyynYUYUfCUTubJMgD7Zl9mbPRm2TSvmz_8FbH_5AOXU9_QXLSX01</recordid><startdate>20170529</startdate><enddate>20170529</enddate><creator>Hao, Ye</creator><creator>Li, Aihua</creator><creator>Yang, Jun</creator><creator>Gao, Wentao</creator><creator>Sun, Zhijun</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20170529</creationdate><title>Quantum control and enhancement of multi-color emissions in upconversion nanoparticles</title><author>Hao, Ye ; Li, Aihua ; Yang, Jun ; Gao, Wentao ; Sun, Zhijun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c327t-eca0cda65b996f1e1761b7b068d9d9a57d9eccf8157db17b6d4b7b0cec154e353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Applied physics</topic><topic>Color</topic><topic>Erbium</topic><topic>Fabry-Perot interferometers</topic><topic>Nanomaterials</topic><topic>Nanoparticles</topic><topic>Upconversion</topic><topic>Ytterbium</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hao, Ye</creatorcontrib><creatorcontrib>Li, Aihua</creatorcontrib><creatorcontrib>Yang, Jun</creatorcontrib><creatorcontrib>Gao, Wentao</creatorcontrib><creatorcontrib>Sun, Zhijun</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hao, Ye</au><au>Li, Aihua</au><au>Yang, Jun</au><au>Gao, Wentao</au><au>Sun, Zhijun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantum control and enhancement of multi-color emissions in upconversion nanoparticles</atitle><jtitle>Applied physics letters</jtitle><date>2017-05-29</date><risdate>2017</risdate><volume>110</volume><issue>22</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>Upconversion luminescence (UCL) of lanthanide-doped nanomaterials is usually a low-efficiency nonlinear process, involving multi-step, multi-channel transitions in a multi-level system. 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subjects | Applied physics Color Erbium Fabry-Perot interferometers Nanomaterials Nanoparticles Upconversion Ytterbium |
title | Quantum control and enhancement of multi-color emissions in upconversion nanoparticles |
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