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Proceedings Paper

Design and fabrication of a chitosan based integrated optical device for humidity sensing
Author(s): Alexander Mironenko; Alexander A. Sergeev; Svetlana Bratskaya; Alexander Nepomnyashiy; Valentin Avramenko; Sergey Voznesenskiy
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Paper Abstract

Here we report on preparation of planar optical waveguides based on chitosan (DD=80.5%, MW=500kDa) in different salt forms, chitosan/gold nanoparticles, chitosan/gold nanoparticles/silica hybrids with layered structure and modification of Na/K ion-exchange waveguides with thin chitosan/carrageenan multilayers. Chitosan-based optical waveguides with thickness of 0.5- 1.5 μm were obtained on quartz, glass and MgF2 substrates by spin-coating and dip-coating. For investigation of optical properties, light (wavelength 632 or 532 nm) was coupled into the planar waveguide via the flint glass prism using goniometer. A number of modes, effective refractive index, waveguide propagation losses were determined for all samples in the range of relative humidity 10-99%.

Paper Details

Date Published: 9 September 2011
PDF: 7 pages
Proc. SPIE 8093, Metamaterials: Fundamentals and Applications IV, 809320 (9 September 2011); doi: 10.1117/12.894341
Show Author Affiliations
Alexander Mironenko, Institute of Chemistry (Russian Federation)
Alexander A. Sergeev, Institute for Automation and Control Processes (Russian Federation)
Svetlana Bratskaya, Institute of Chemistry (Russian Federation)
Alexander Nepomnyashiy, Institute for Automation and Control Processes (Russian Federation)
Valentin Avramenko, Institute of Chemistry (Russian Federation)
Sergey Voznesenskiy, Institute for Automation and Control Processes (Russian Federation)

Published in SPIE Proceedings Vol. 8093:
Metamaterials: Fundamentals and Applications IV
Allan D. Boardman; Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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