Realization and Characterization of a Four-Channel Integrated Optical Young Interferometer


Ymeti, Aurel and Kanger, Johannes S. and Lambeck, Paul V. and Wijn, Robert and Heideman, Rene G. (2003) Realization and Characterization of a Four-Channel Integrated Optical Young Interferometer. In: 12th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2003, 8-12 June 2003, Boston, MA, USA (pp. pp. 1192-1196).

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Abstract:In this paper, we report the realization and characterization of a four-channel integrated optical Young interferometer (YI), which enables simultaneous and independent monitoring of three binding processes. The simultaneous and independent measurement of three different glucose concentrations shows the multi-purpose feature of such device. The phase resolution for different pairs of channels was /spl sim/1/spl times/10/sup -4/ fringes, which corresponds to a refractive index resolution of /spl sim/8.5/spl times/10/sup -8/ . The observed errors, which are caused due to mismatching of spatial frequencies of individual interference patterns with those determined from the CCD camera, have been reduced by using different reduction schemes. In addition, we have investigated a novel method for discrimination of the refractive index change from the thickness of a bound layer during an immunoreaction, as well as measuring the temperature change the takes place during such a process.
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Copyright:©2003 IEEE
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