Table 2 List of ultrastructural parameters obtained from DSP polarimetric parameters and their biophysical significance.
From: Double Stokes polarimetric microscopy for chiral fibrillar aggregates
Parameter | Name/ description | Related polarimetric parameters | Biophysical significance | References |
|---|---|---|---|---|
\(\delta\) | In-image-plane fiber orientation angle | A, B, \(SHG_{LD}\), \(SHG_{45}\) | Fiber in-image-plane orientation | |
R | Achiral susceptibility ratio | \(CA_{CD}\), L | Reflects the orientation distribution of nonlinear dipoles with respect to the fiber axis | |
C | Magnitude of chiral susceptibility ratio | H, T, \(SHG_{CD}\), W | Reflects the helical arrangement of dipoles with respect to the fiber axis | |
\(\Delta\) | Phase difference between achiral and chiral susceptibility ratios | H, T, \(SHG_{CD}\), W, D | Phase difference between achiral and chiral nonlinear susceptibility tensor component ratios |
