Measurement and Optimization of Metal-Nanoparticle-Induced Luminescence Enhancement Factors in a Crossed-Optical Fiber Configuration

<table>Enhancement factors <svg height="9.875" id="M77" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 7.9375 9.875" width="7.9375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,9.875)">
<g transform="translate(72,-64.1)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜂</tspan>
</text>
</g>
</g>
</svg> and lifetime ratios <svg height="10.175" id="M78" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 8.125 10.175" width="8.125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.175)">
<g transform="translate(72,-63.86)">
<text transform="matrix(1,0,0,-1,-65.87,63.97)">
<tspan style="font-size: 12.50px; " x="0" y="0">̃</tspan>
<tspan style="font-size: 12.50px; " x="-6.076458" y="0">𝜏</tspan>
</text>
</g>
</g>
</svg> as function of the total spacer layer thickness <svg height="10.75" id="M79" style="vertical-align:-0.15048pt" version="1.1" viewbox="0 0 9.375 10.75" width="9.375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.75)">
<g transform="translate(72,-63.4)">
<text transform="matrix(1,0,0,-1,-71.95,63.6)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑑</tspan>
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</g>
</g>
</svg> (bottom axis) and number <i>n</i> of polyelectrolyte (double) layers (top axis) for the fibercore~AgNS-(PAH-PSS)<i><sub>n</sub></i>-(PAH<i>~</i>RuBITC-PSS)<sub>4</sub> assemblies.</table>

Journal of Nanomaterials

fig5

Figure 5

Figure 5: Measurement and Optimization of Metal-Nanoparticle-Induced Luminescence Enhancement Factors in a Crossed-Optical Fiber Configuration 