Comparison of robust coupling techniques for planar waveguide immunosensors

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Publication Type Journal Article
School or College College of Engineering
Department Bioengineering
Creator Christensen, Douglas A.; Herron, James N.
Other Author Dyer, Shellee; Hlady, Vladimir
Title Comparison of robust coupling techniques for planar waveguide immunosensors
Date 1993
Description We have analyzed and fabricated two different coupling schemes to meet the requirements for a convenient means of coupling into a planar waveguide immunosensor that is relatively insensitive to beam alignment. These are the "launch" coupler and the grating coupler. Each possesses advantages and disadvantages, depending mainly on die thickness (mode number) of the waveguide to be illuminated. For example, the launch coupler is best suited to a thick (highly multimode) waveguide and is less efficient for a thin (few mode) guide. Our experimental results verify predictions of a ray theory developed to give coupling efficiency for a variety of coupling parameters.
Type Text
Publisher International Society for Optical Engineering (SPIE)
Volume 1796
First Page 20
Last Page 25
DOI 10.1117/12.143532
citatation_issn 0277786X
Subject Planar waveguide immunosensors; Fluorescence; Launch coupler; Grating coupler
Subject LCSH Immunoassay; Wave guides; Biosensors
Language eng
Conference Title Chemical, Biochemical, and Environmental Fiber Sensors IV; Wednesday 09 September 1992; Boston, MA, USA
Bibliographic Citation Christensen, D. A., Dyer, S., Herron, J. N., & Hlady, V. (1993). Comparison of robust coupling techniques for planar waveguide immunosensors. Proceedings of SPIE - The International Society for Optical Engineering, 1796, 20-25.
Rights Management (c)Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Format Medium application/pdf
Format Extent 398,301 bytes
Identifier ir-main,11675
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Date Created 2012-06-13
Date Modified 2021-05-06
ID 705174
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