1991) Static and dynamic properties of optical second harmonic generation in ferroelectric liquid crystal, Ferroelectrics, 121:1, 259-274,

The angularly phase-matched second-harmonic generation (SHG) in ferroelectric liquid crystal has been studied as a function of electric field strength, sample thickness, rotating angle and temperature. A sharp angular phase-matching curve of the SHG controlled by an electric field is observed even in the liquid crystal. The temperature dependence of the phase-matched SHG in the ferroelectric phase has also been studied, and the temperature-tuned phase matching of SHG is realized by using the change in tilt angle of the ferroelectric liquid crystal.

The profile of the phase-matching behavior of second-harmonic generation in ferroelectric liquid crystal has been found to be strongly dependent on cell thickness. A sharp angular phase-matching curve of the second-harmonic generation with the full width at half-maximum of ∼1° is observed even in the liquid crystal. The effective nonlinear optical coefficient d eff at the phase-matching condition is determined. The temperature dependence of the phase-matching behavior in the ferroelectric phase has also been studied.