@inproceedings{9f57babbdaf74c74866d4df13c04235f,
title = "High-precision flow velocity measurement in microfluidic chips using optical tweezers",
abstract = "Accurate monitoring of flow velocity within a microfluidic chip is of critical importance. Existing devices for flow measurement in microfluidic chips lack the ability to provide detailed local flow velocity distribution or suffer from measurement errors. We present a novel optical tweezer velocimetry technique based on quadrant position detector with enhanced measurement accuracy. The impacts of laser trapping power on measurement range and the sensitivity of the technique are investigated. The velocity distribution at various depths inside the microfluidic chip under different flow conditions is resolved using the technique.",
keywords = "flow velocity measurement, microfluidic chip, Optical tweezer velocimetry",
author = "Shouzhuang Zhao and Shangran Xie",
note = "Publisher Copyright: {\textcopyright} 2025 SPIE.; 2nd International Academic Conference on Optics and Photonics, IACOP 2024 ; Conference date: 22-11-2024 Through 24-11-2024",
year = "2025",
doi = "10.1117/12.3060263",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Yang Yue",
booktitle = "Second International Academic Conference on Optics and Photonics, IACOP 2024",
address = "United States",
}