ABSTRACT
The chiral smectic subphase with three-layer structure, , is now of great interest from the point of view of device technologies such as multistate or symmetric switching. We report that the unique nonlinear electro-optic response can serve as precise mark of the phase transition into three-layer structure. The problem is illustrated with the first and third harmonic electro-optic spectra. Furthermore, the characteristic response of the helical liquid crystal phases correlated with particular collective modes using the Debye-type relaxation method for the well-known prototype liquid crystal material (MHPOBC) are presented.
Acknowledgments
The author would like to thank Prof. W. Kuczyński for his kind support.
Disclosure statement
No potential conflict of interest was reported by the authors.