Fabrication of self-assembled microwires from silica nanoparticles for sensing

Publisher:
SPIE
Publication Type:
Conference Proceeding
Citation:
Proceedings of SPIE Third Asia Pacific Optical Sensors Conference, 2012, 8351
Issue Date:
2012-02-20
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A simple method of fabricating low loss microwire waveguides from silica nanoparticles via evaporative self-assembly is demonstrated. Light guidance within the microwires is characterised. The photonic microwires assemble into rectangular slab waveguides with a typical cross-sectional dimension of (20×10) μm and are up to 15 mm in length. Rhodamine B was incorporated into the structures and characterized with fluorescent microscopy, absorption spectroscopy and scanning electron microscopy (SEM). We discuss the relevance of these structures to sensing. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
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