Automated polarization rotation for multi-axis rotational-anisotropy second harmonic generation experiments

Automated polarization rotation for multi-axis rotational-anisotropy second harmonic generation experiments Morey, Karna A; Fichera, Bryan T; Lv, Baiqing; Shen, Zongqi; Gedik, Nuh Rotational anisotropy second harmonic generation (RA-SHG) is a nonlinear optical technique used to probe the symmetry of condensed matter systems. Measuring the dependence of the SHG susceptibility on one or more external parameters, notably strain, field, temperature, or time delay, is an extremely powerful way to pro