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Figure 1

From: Optofluidic vapor sensing with free-space coupled 2D photonic crystal slabs

Figure 1The alternative text for this image may have been generated using AI.

(a) Schematic view of a PCS vapor sensor with free-space coupled laser beam. (b) Device top view in x-y plane. (c) Device cross-sectional view in x-z plane. The PCS is coated with OV-101 polymer. PCS configuration: a is the lattice constant, r is the hole radius, tSi and tpoly are the thicknesses of Si and polymer, respectively.

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