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Helmers H, Greco P, Rustad R, et al. Performance of a compact, hybrid optical evanescent-wave sensor for chemical and biological applications. Appl Opt. 1996;35(4):676-80doi: 10.1364/AO.35.000676.
Helmers, H., Greco, P., Rustad, R., Kherrat, R., Bouvier, G., & Benech, P. (1996). Performance of a compact, hybrid optical evanescent-wave sensor for chemical and biological applications. Applied optics, 35(4), 676-80. https://doi.org/10.1364/AO.35.000676
Helmers, H, et al. "Performance of a compact, hybrid optical evanescent-wave sensor for chemical and biological applications." Applied optics vol. 35,4 (1996): 676-80. doi: https://doi.org/10.1364/AO.35.000676
Helmers H, Greco P, Rustad R, Kherrat R, Bouvier G, Benech P. Performance of a compact, hybrid optical evanescent-wave sensor for chemical and biological applications. Appl Opt. 1996 Feb 01;35(4):676-80. doi: 10.1364/AO.35.000676. PMID: 21069055.
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Appl Opt. 1996 Feb 01;35(4):676-80. doi: 10.1364/AO.35.000676.

Performance of a compact, hybrid optical evanescent-wave sensor for chemical and biological applications.

Applied optics

H Helmers, P Greco, R Rustad, R Kherrat, G Bouvier, P Benech

PMID: 21069055 DOI: 10.1364/AO.35.000676

Abstract

We describe a hybrid evanescent-wave sensor component that we fabricated by using an integrated optical interferometer with a specially adapted photodetector array. The design of the interferometer is based on the use of tapered waveguides to obtain two intersecting collimated beams. Phase shifts can be measured with an angular precision of better than 10(-3) rad, which corresponds to a superstrate index change inferior of 10(-6) with our structure. The interest in the device as a chemical sensor is experimentally demonstrated. The same optical component could be used in a variety of other sensor applications, e.g., biological and immunological sensors.

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