journal article

Journal Article

Text

Journal of Applied Physics. 2002, 92(11), p. 6384-6389

Electro-optical response of reflected light from freely suspended smectic liquid-crystal films

American Institute of Physics

English

Text

2002-11-02

https://doi.org/10.1063/1.1518761

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Kazuyuki Nakano, Masanori Ozaki, and Katsumi Yoshino, Journal of Applied Physics 92, 6384 (2002) and may be found at https://doi.org/10.1063/1.1518761.

We have studied the electro-optical response of reflected light from the surface of freely suspended liquid-crystal films (FSFs) in SmA, SmC*, and SmC*A phases. Upon application of an electric field parallel to FSFs, the film vibrational spectrum generally contains a second-harmonic component of the applied frequency. In the SmA phase, only a second-harmonic component appeared in the fast Fourier transform (FFT) spectra of the reflected light. In the SmC* phase, however, many other components also appeared in the FFT spectra of the reflected light. These complicated characteristics observed in the ferroelectric phase might be attributed to the contribution of the transient scattering mode. On the other hand, in the SmC*A phase, only the second-harmonic component appeared, similar to the case of the SmA phase. In the electric field high enough to cause an antiferroelectric–ferroelectric phase transition, however, many other components appear in the spectrum, in the same manner as that in the SmC* phase.

75851

Electro-optical response of reflected light from freely suspended smectic liquid-crystal films

American Institute of Physics

English

2002-11-02

Journal of Applied Physics

92

11

6384

6389

https://doi.org/10.1063/1.1518761

https://hdl.handle.net/11094/75851