Figure 3
Optically modulated transmission and induced birefringence. (a,b,c) Transmitted probe beam intensity (I T ) normalized to the incident probe intensity (I 0 ) as a function of the pump intensity (I P ) polarized along x (blue diamonds) and along y (red dots) measured in 5CB/CB15 at room T (a), in 5CB/CB15 at three different T (b), and in the AT-DD cell (c). Measurements are performed with polarizers at extinction. Dashed lines: fit to the data with Eq. 7. Continuous lines: fit to the data with Eq. 9. Inset: same measurements with analyzer rotated away from the extinction position, fitted with a linear dependence (continuous line). (d) Optically induced birefringence in the AT-DD N* phase extracted from the data in panel c by Eq. 1 fitted with a linear dependence (line).
