This folder contains the results of measurements of second harmonic hyper-Rayleigh scattering (SHRS) intensity as a function of incident laser power.

The sample is specified in the file name:
RH = right-handed helices
LH = left-handed helices

The columns of the text files contain the following data:
Column 1 - incident laser power
Column 2 - quarter-wave plate angle (45 deg and 225 deg correspond to left circularly polarised light and 135 deg and 315 deg to right circularly polarised light)
Column 3 - intensity measured when the laser beam is incident on the sample (in counts)
Column 4 - intensity measured when the laser beam is block by the optical chopper