CARS polarized microscopy of three-dimensional director structures in liquid crystals

Details CARS polarized microscopy of three-dimensional director structures in liquid crystals CARS polarized microscopy of three-dimensional director structures in liquid crystals

2007-10-18

arxiv.org/abs/0710.3609v1

Appl. Phys. Lett. 91, 151905 (2007)

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 4 figures, published in Appl. Phys. Lett. 91, 151905 (2007)

Scientific paper

10.1063/1.2800887

We demonstrate three-dimensional vibrational imaging of director structures in liquid crystals using coherent anti-Stokes Raman scattering (CARS) polarized microscopy. Spatial mapping of the structures is based on sensitivity of a polarized CARS signal to orientation of anisotropic molecules in liquid crystals. As an example, we study structures in a smectic material and demonstrate that single-scan CARS and two-photon fluorescence images of molecular orientation patterns are consistent with each other and with the structure model.

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