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Surface Plasmon Polariton Enhanced Fluorescence from Quantum Dots on Nanostructured Metal Surfaces

机译:表面等离子极化增强纳米结构金属表面量子点的荧光。

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Surface plasmon polariton enhanced fluorescence from CdSe/ZnS quantum dots (QD) deposited onto patterned gold/PMMA substrates has been observed. Comparison of gold, chromium, and ITO substrates is used to verify restriction of enhancement effect to surface plasmon polariton supporting materials. Enhanced fluorescence is observed by using one dimensional gratings defined by electron beam lithography to provide phase matched coupling into surface plasmon polaritons on the metal film surface. Controlled variation of grating parameters is used to examine the dependence of this effect on the periodicity and shape of the coupling grating. Analysis of the results indicates that strong enhancement requires optimization of both grating periodicity and structure for specific wavelengths and materials.
机译:已经观察到表面等离子体激元极化增强了来自沉积在图案化金/ PMMA基板上的CdSe / ZnS量子点(QD)的荧光。通过比较金,铬和ITO基板来验证对表面等离振子极化子支持材料的增强效果的限制。通过使用电子束光刻定义的一维光栅观察到增强的荧光,以提供相位匹配的耦合到金属膜表面上的表面等离激元极化子中。光栅参数的受控变化用于检查此效应对耦合光栅的周期性和形状的依赖性。结果分析表明,针对特定的波长和材料,强烈增强需要优化光栅的周期性和结构。

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