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Title: Particle free optical imaging of flow field by liquid crystal polarization
Authors: Huang, Yi
Shinoj, Vengalathunadakal K.
Wong, TeckNeng
Matham, Murukeshan Vadakke
Keywords: Liquid-crystal Devices
Micro-optical Devices
DRNTU::Engineering::Mechanical engineering
Issue Date: 2018
Source: Huang, Y., Shinoj, V. K., Wong, T., & Matham, M. V. (2018). Particle free optical imaging of flow field by liquid crystal polarization. Optics Express, 26(8), 10452-. doi:10.1364/OE.26.010452
Series/Report no.: Optics Express
Abstract: This paper proposes and demonstrates a particle free method for flow field visualizations by analyzing liquid crystal polarizations. The proposed concept is implemented by imaging of liquid crystal flow under microfluidic environment using a crossed polarization microscopy configuration. Fringe patterns give good representation of flow characterizations for different nozzle/diffuser microchannel designs. The obtained results demonstrate that the flow field under various conditions can be evaluated. Visualizations of the flow fields are carried out by the liquid crystal polarization induced fringe patterns in nozzle/diffuser microchannels. We achieve good match between the flow field obtained by LC polarization and the simulated one. It is envisaged that the proposed methodology can make a potential impact in flow field visualization studies and related analysis.
DOI: 10.1364/OE.26.010452
Rights: © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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