Next Article in Journal
Analytical Formulation of the Electric Field Induced by Electrode Arrays: Towards Automated Dielectrophoretic Cell Sorting
Next Article in Special Issue
High-Q Fabry–Pérot Micro-Cavities for High-Sensitivity Volume Refractometry
Previous Article in Journal
Cost Index Model for the Process Performance Optimization of Micro-EDM Drilling on Tungsten Carbide
Previous Article in Special Issue
Rapid Screening of Graphitic Carbon Nitrides for Photocatalytic Cofactor Regeneration Using a Drop Reactor
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Micromachines 2017, 8(8), 252;

Optofluidic Lab-on-a-Chip Fluorescence Sensor Using Integrated Buried ARROW (bARROW) Waveguides

Electrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA
Baskin School of Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
Author to whom correspondence should be addressed.
Received: 26 July 2017 / Revised: 9 August 2017 / Accepted: 14 August 2017 / Published: 17 August 2017
(This article belongs to the Special Issue Photonic MEMS and Optofluidic Devices)
Full-Text   |   PDF [2607 KB, uploaded 17 August 2017]   |  


Optofluidic, lab-on-a-chip fluorescence sensors were fabricated using buried anti-resonant reflecting optical waveguides (bARROWs). The bARROWs are impervious to the negative water absorption effects that typically occur in waveguides made using hygroscopic, plasma-enhanced chemical vapor deposition (PECVD) oxides. These sensors were used to detect fluorescent microbeads and had an average signal-to-noise ratio (SNR) that was 81.3% higher than that of single-oxide ARROW fluorescence sensors. While the single-oxide ARROW sensors were annealed at 300 °C to drive moisture out of the waveguides, the bARROW sensors required no annealing process to obtain a high SNR. View Full-Text
Keywords: optofluidics; lab-on-a-chip; fluorescence sensing; PECVD; SiO2; water absorption optofluidics; lab-on-a-chip; fluorescence sensing; PECVD; SiO2; water absorption

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Wall, T.; McMurray, J.; Meena, G.; Ganjalizadeh, V.; Schmidt, H.; Hawkins, A.R. Optofluidic Lab-on-a-Chip Fluorescence Sensor Using Integrated Buried ARROW (bARROW) Waveguides. Micromachines 2017, 8, 252.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top