Kim, Dongwan and Popescu, Paula and Harfouche, Mark and Sendowski, Jacob and Dimotsantou, Maria-Eleni and Flagan, Richard C. and Yariv, Amnon (2015) On-chip integrated differential optical microring refractive index sensing platform based on a laminar flow scheme. Optics Letters, 40 (17). pp. 4106-4109. ISSN 0146-9592. doi:10.1364/OL.40.004106. https://resolver.caltech.edu/CaltechAUTHORS:20150903-154514546
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Abstract
We propose an on-chip integrated differential optical microring refractive index sensing platform which leverages laminar flow conditions. Close spacing between a sensing and a reference resonator, and sharing the same microfluidic channel allows the two resonators to experience similar environmental disturbances, such as temperature fluctuations and fluidic-induced transients, achieving reliable and sensitive sensing performance. We obtain a noise floor of 80.0 MHz (0.3 pm) and a bulk refractive index sensitivity of 17.0 THz per refractive index unit (RIU) (64.2 nm/RIU), achieving a limit of detection of 1.4×10^(-5) RIU in a 30 min and an 8° C window.
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| Additional Information: | © 2015 Optical Society of America. Received 11 June 2015; revised 4 August 2015; accepted 5 August 2015; posted 7 August 2015 (Doc. ID 241769); published 28 August 2015. Funding: National Science Foundation (NSF) (1152623). | |||||||||
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| Issue or Number: | 17 | |||||||||
| Classification Code: | OCIS codes: (280.4788) Optical sensing and sensors; (280.1415) Biological sensing and sensors; (140.4780) Optical resonators; (130.3120) Integrated optics devices. | |||||||||
| DOI: | 10.1364/OL.40.004106 | |||||||||
| Record Number: | CaltechAUTHORS:20150903-154514546 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150903-154514546 | |||||||||
| Official Citation: | D. Kim, P. Popescu, M. Harfouche, J. Sendowski, M. Dimotsantou, R. Flagan, and A. Yariv, "On-chip integrated differential optical microring refractive index sensing platform based on a laminar flow scheme," Opt. Lett. 40, 4106-4109 (2015) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 60062 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Kristin Buxton | |||||||||
| Deposited On: | 03 Sep 2015 23:02 | |||||||||
| Last Modified: | 10 Nov 2021 22:29 |
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