Plasmonic Band-Pass Microfilters for LWIR Absorption Spectroscopy

<table>Power flow of the 11 <i>μ</i>m filter after optimizing <svg height="16.487499" id="M55" style="vertical-align:-3.41931pt" version="1.1" viewbox="0 0 27.924999 16.487499" width="27.924999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><use xlink:href="#x210E"></use></g>
<g transform="matrix(.012,-0,0,-.012,8.837,16.25)"><use xlink:href="#x4D"></use></g><g transform="matrix(.012,-0,0,-.012,19.332,16.25)"><use xlink:href="#x43"></use></g>
</svg>. First inset is a power flow plot of the overlap region on a different color scale. Second inset is a plot of ohmic heating in the microbolometer (aspect ratio is expanded vertically by 5x for better visibility).</table>

International Journal of Optics

fig7

Figure 7

Figure 7: Plasmonic Band-Pass Microfilters for LWIR Absorption Spectroscopy 