Photoacoustic microfluidics emerges as a promising method for particle or droplet analysis. Here we propose a microfluidic chip design based on laser polarization-dependent reflection from the interface of an optical prism and the liquid, which can detect photoacoustic signal without the need of the bulky ultrasonic transducer. This design will reduce the structure complexity and also the cost. As demonstration, we made such chips and detected moving microspheres by analyzing the photoacoustic signal from the black tape fixed underneath the flow channel.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.