@inproceedings{769621e711de4819b7367436ee57b78f,
title = "A PMUT based photoacoustic system as a microfluidic concentration detector",
abstract = "We report on the development of a novel piezo-MEMS-based optofluidic platform to detect the concentration of various species dissolved in a fluid. This platform employs piezoelectric micromachined ultrasound transducers (PMUTs) to work as a photoacoustic receiver, receiving ultrasound from fluid targets present in microfluidic channels while illuminated with a nanosecond pulsed laser. We fabricate both the PMUTs and the microfluidic channels and subsequently use them for the experiment. We also show the capability of PMUTs as a general photoacoustic receiver and demonstrate its signal-to-noise characteristics (31) and its wide fractional bandwidth (73%).",
keywords = "concentration detection, microfabrication, microfluidic, photoacoustic, piezo-MEMS, PMUTs",
author = "Kaustav Roy and Vijayendra Shastri and Akshay Kumar and Jagi Rout and Isha Isha and Kritank Kalyan and Jaya Prakash and Rudra Pratap",
year = "2022",
doi = "10.1117/12.2608934",
language = "English",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
editor = "Oraevsky, {Alexander A.} and Wang, {Lihong V.}",
booktitle = "Photons Plus Ultrasound",
address = "United States",
note = "Photons Plus Ultrasound: Imaging and Sensing 2022 ; Conference date: 20-02-2022 Through 24-02-2022",
}