Real-time dynamic sensing with an on-chip nanophotonic sensor

Yazhao Liu, H. W.M. Salemink*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)


We demonstrate a nanophotonic sensor for real-time monitoring of fluid flows. The sensor is based on a silicon photonic crystal cavity with a well aligned micro fluidic channel for fluid-injection. The simulated resonant wavelength shift of the sensor with residual oil in holes is 9.0 nm, and the observed experimental shift under the same condition is 10.0 nm. An alternating fluid delivery is applied in a dynamic sensing experiment with syringe pump controlled ratios of water and oil. Excellent agreement between the measured data and the video images of fluidic streams in the optofluidic cell is found.

Original languageEnglish
Pages (from-to)17201-17210
Number of pages10
JournalOptics Express
Issue number15
Publication statusPublished - 24 Jul 2017


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