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Micromachines 2018, 9(3), 134; https://doi.org/10.3390/mi9030134

Modeling and Analysis of an Opto-Fluidic Sensor for Lab-on-a-Chip Applications

1
Department of Electronics and Communication Engineering, Sai Vidya Institute of Technology, Bengaluru, Karnataka 560064, India
2
Department of Electrical Engineering, BITS-Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India
*
Author to whom correspondence should be addressed.
Received: 27 February 2018 / Revised: 15 March 2018 / Accepted: 15 March 2018 / Published: 19 March 2018
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Abstract

In this work modeling and analysis of an integrated opto-fluidic sensor, with a focus on achievement of single mode optical confinement and continuous flow of microparticles in the microfluidic channel for lab-on-a-chip (LOC) sensing application is presented. This sensor consists of integrated optical waveguides, microfluidic channel among other integrated optical components. A continuous flow of microparticles in a narrow fluidic channel is achieved by maintaining the two sealed chambers at different temperatures and by maintaining a constant pressure of 1 Pa at the centroid of narrow fluidic channel geometry. The analysis of silicon on insulator (SOI) integrated optical waveguide at an infrared wavelength of 1550 nm for single mode sensing operation is presented. The optical loss is found to be 5.7 × 10−4 dB/cm with an effective index of 2.3. The model presented in this work can be effectively used to detect the nature of microparticles and continuous monitoring of pathological parameters for sensing applications. View Full-Text
Keywords: microfluidic channel; microparticles; fluid flow rate; lab-on-a-chip; SOI waveguide microfluidic channel; microparticles; fluid flow rate; lab-on-a-chip; SOI waveguide
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Muniswamy, V.; Bangalore Muniraju, C.; Kumar Pattnaik, P.; Krishnaswamy, N. Modeling and Analysis of an Opto-Fluidic Sensor for Lab-on-a-Chip Applications. Micromachines 2018, 9, 134.

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