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15 March 2023 QuantitativeiImaging of 3D orientation of polymer chains (Conference Presentation)
Young J. Lee, Shuyu Xu
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Proceedings Volume PC12385, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXX; PC1238507 (2023) https://doi.org/10.1117/12.2649319
Event: SPIE BiOS, 2023, San Francisco, California, United States
Abstract
Anisotropic molecular alignment occurs ubiquitously and often heterogeneously at different size scales. However, conventional optical imaging approaches can only provide incomplete molecular orientation maps on the 2D polarization plane. Here, we present two new approaches based on polarization-controlled IR microscopy and broadband CARS microscopy to determine the 3D angles of molecular orientations independently at each image pixel. These new approaches are based on concurrent polarization analysis of multiple vibrational modes to map the 3D orientation angles and the order parameter of the local orientational distribution of polymer chains. We demonstrate the new technique using a non-banded poly(e-caprolactone) film and a ring-banded polyethylene film.
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Young J. Lee and Shuyu Xu "QuantitativeiImaging of 3D orientation of polymer chains (Conference Presentation)", Proc. SPIE PC12385, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXX, PC1238507 (15 March 2023); https://doi.org/10.1117/12.2649319
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KEYWORDS
Polymers
3D image processing
Infrared imaging
Absorption
Microscopy
Stereoscopy
Infrared microscopy
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