Tunable fluorescence lifetime of Eu-PMMA films with plasmonic nanostructures for multiplexing.
Tunable fluorescence lifetime of Eu-PMMA films with plasmonic nanostructures for multiplexing.
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DOI：
10.1364/oe.24.008228
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发表时间：
2016-04
期刊：
影响因子：
3.8
通讯作者：
Jun Zhang;F. Song;Shangxin Lin;Shujing Liu;Yanling Liu
中科院分区：
文献类型：
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作者：
Jun Zhang;F. Song;Shangxin Lin;Shujing Liu;Yanling Liu
提出了一种调节Eu-PMMA薄膜荧光寿命的方法，该薄膜由Eu-PMMA壳层覆盖在玻璃基底上的自组装金纳米棒组成。荧光寿命在很宽的范围内可调，并取决于金纳米棒的纵横比和相互距离。在一个单一的红色发射通道中，获得了六个以上不同的荧光寿命布居，范围从356 μs到513 μs。通过理论计算，我们将荧光寿命的可调归因于辐射和非辐射衰减速率以及光子态密度的变化。此外，我们使用这些制备的Eu-PMMA薄膜的安全数据存储，以证明光学复用应用。光复用实验显示了一个有趣的伪信息“8”，隐藏了真实的信息“2”和“6”。
A method to tune fluorescence lifetime of Eu-PMMA films is proposed, which consists of self-assembled gold nanorods on glass substrate covered by Eu-PMMA shell. The fluorescence lifetime is tunable in a wide range, and depends on aspect ratio and mutual distance of gold nanorods. In a single red color emission channel, more than six distinct fluorescence lifetime populations ranging from 356 to 513 μs are obtained. Through theoretical calculation, we attribute tunable fluorescence lifetime to the change of radiative and nonradiative decay rate and density of photon states. In addition, we use these as-prepared Eu-PMMA films for security data storage to demonstrate optical multiplexing applications. The optical multiplexing experiments show an interesting pseudo-information "8" and conceal the real messages "2" and "6".