Roy, K and Shastri, V and Kumar, A and Rout, J and Isha, I and Kalyan, K and Prakash, J and Pratap, R (2022) A PMUT based photoacoustic system as a microfluidic concentration detector. In: Photons Plus Ultrasound: Imaging and Sensing 2022, 20-24 February 2022, Virtual, Online at San Francisco, California, United States,.
Full text not available from this repository.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). © 2022 SPIE.
| Item Type: | Conference Paper |
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| Additional Information: | The copyright for this article belongs to the SPIE. |
| Uncontrolled Keywords: | Bandwidth; Fluidic devices; Microfluidics; Photoacoustic effect; Photons; Signal receivers; Signal to noise ratio; Ultrasonic applications; Ultrasonic transducers, Concentration detections; Concentration detectors; Micro-fabrication; Microfluidic concentrations; Microfluidics channels; Micromachined ultrasound transducers; Photoacoustic systems; Piezo-MEMS; Piezoelectric; Piezoelectric micromachined ultrasound transducer, MEMS |
| Subjects: | Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering |
| Depositing User: | Neha Athanere |
| Date Deposited: | 21 Jun 2022 09:40 |
| Last Modified: | 21 Jun 2022 09:40 |
| URI: | https://eprints.iisc.ac.in/id/eprint/73950 |
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