Nanostructured Porous Silicon Photonic Crystal for Applications in the Infrared

<table>Complete TE gap map as a function of the PSi layer porosity. In the right <svg height="9.8625002" id="M14" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 7.875 9.8625002" width="7.875" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,9.8625)">
<g transform="translate(72,-64.11)">
<text transform="matrix(1,0,0,-1,-71.95,66.45)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑦</tspan>
</text>
</g>
</g>
</svg> axis, equivalent wavelength is indicated for a lattice parameter of <svg height="10.625" id="M15" style="vertical-align:-0.1254pt" version="1.1" viewbox="0 0 35.174999 10.625" width="35.174999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.625)">
<g transform="translate(72,-63.5)">
<text transform="matrix(1,0,0,-1,-71.95,63.67)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑎</tspan>
<tspan style="font-size: 12.50px; " x="9.7398367" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="21.780226" y="0">7</tspan>
</text>
</g>
</g>
</svg> <i>μ</i>m, the same as the experimental one (see Section <a href="https://static.hindawi.com/articles/jnt/volume-2012/106170/figures/#sec3">3</a>). In the top <svg height="7.1624999" id="M16" style="vertical-align:-0.11285pt" version="1.1" viewbox="0 0 8.7250004 7.1624999" width="8.7250004" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,7.1625)">
<g transform="translate(72,-66.27)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑥</tspan>
</text>
</g>
</g>
</svg> axis, effective refractive index is shown following (<a href="https://static.hindawi.com/articles/jnt/volume-2012/106170/figures/#EEq1">1</a>).</table>

Journal of Nanotechnology

fig4

Figure 4

Figure 4: Nanostructured Porous Silicon Photonic Crystal for Applications in the Infrared 