Spatially multiplexed dielectric tensor tomography

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Dielectric tensor tomography (DTT) enables the reconstruction of three-dimensional (3D) dielectric tensors, which provides a physical measure of 3D optical anisotropy. Herein, we present a cost-effective and robust method of DTT using spatial multiplexing. Exploiting two orthogonally polarized reference beams with different angles in an off-axis interferometer, two polarization-sensitive interferograms were multiplexed and recorded using a single camera. Then, the two interferograms were demultiplexed in the Fourier domain. By measuring the polarization-sensitive fields for various illumination angles, 3D dielectric tensor tomograms were reconstructed. The proposed method was experimentally demonstrated by reconstructing the 3D dielectric tensors of various liquid-crystal (LC) particles with radial and bipolar orientational configurations.
Publisher
OPTICAL SOC AMER
Issue Date
2022-12
Language
English
Article Type
Article
Citation

OPTICS LETTERS, v.47, no.23, pp.6205 - 6208

ISSN
0146-9592
DOI
10.1364/OL.474969
URI
http://hdl.handle.net/10203/303058
Appears in Collection
PH-Journal Papers(저널논문)
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