Fig. 2: Accurate transfer printing system with in-situ reflectivity spectrum measurement capability. | Nature Communications

Fig. 2: Accurate transfer printing system with in-situ reflectivity spectrum measurement capability.

From: Transfer printing micro-assembly of silicon photonic crystal cavity arrays: beating the fabrication tolerance limit

Fig. 2

a Schematic transfer printing system and optical measurement rig incorporating high-accuracy 6-axis stage, fixed stamp holder, Peltier mounted donor and receiver samples and optical microscope objective lenses. b Schematic of the pixel printing process using a PDMS stamp. c, d show images of a printed PhCC pixel in the visible and IR systems respectively. scale bars represent 10 μm. e Schematic detail of the optical injection and measurement system embedded in the transfer printing tool.

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