Brief Communications

Time characteristics of data storage in liquid crystals exhibiting the memory effect

A. S. Vasilevskaya, E. L. Kitaeva, I. A. Slepkov, A. S. Sonin


Abstract: An investigation was made of the time characteristics of the optical memory effect in five mixtures of nematic and cholesteric liquid crystals. The nematic component was a mixture of MBBA and EBBA, taken in equal amounts. The cholesteric component was one of the following compounds: cholesteryl decanoate; cholesteryl pelargonate; cholesteryl erucyl carbonate; cholesteryl oleyl carbonate; cholesteryl oleate. We determined the dependences of the threshold voltage on the duration of the electric pulses, as well as the rise and decay times of the optical pulses. We also studied the time characteristics of erasure of the recorded data.

UDC: 621.378.001

PACS: 42.30.Nt, 42.80.Sa, 61.30.Gd

Received: 19.04.1977

 English version: Soviet Journal of Quantum Electronics, 1977, 7:11, 1421–1422