Multiplexed dielectric tensor tomography for cost-effective and robust dielectric tensor reconstruction (Conference Presentation)

Juheon Lee; Seungwoo Shin; Herve Hugonnet; YongKeun Park

doi:10.1117/12.2653738

16 March 2023 Multiplexed dielectric tensor tomography for cost-effective and robust dielectric tensor reconstruction (Conference Presentation)

Juheon Lee, Seungwoo Shin, Herve Hugonnet, YongKeun Park

Author Affiliations +

Proceedings Volume PC12389, Quantitative Phase Imaging IX; PC123890Q (2023) https://doi.org/10.1117/12.2653738
Event: SPIE BiOS, 2023, San Francisco, California, United States

Abstract

The dielectric tensor is a physical quantity which characterizes birefringent materials with principal refractive indices and orientations of optic axes. Recently, three-dimensional dielectric tensor distribution was directly measured using dielectric tensor tomography (DTT). However, since the original DTT uses two cameras to acquire polarization-sensitive fields, position disagreement between the two fields deteriorates reconstruction quality. Here, we present multiplexed DTT using only one camera. To avoid the position disagreement, we exploit holographic multiplexing, interfering two orthogonally polarized reference beams with a sample beam on the camera. We validate the present method via measurement of anisotropic structures in liquid crystal particles.

Conference Presentation

Citation Download Citation

Juheon Lee, Seungwoo Shin, Herve Hugonnet, and YongKeun Park "Multiplexed dielectric tensor tomography for cost-effective and robust dielectric tensor reconstruction (Conference Presentation)", Proc. SPIE PC12389, Quantitative Phase Imaging IX, PC123890Q (16 March 2023); https://doi.org/10.1117/12.2653738

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