The influence of an external electric field on refractive indices of ordinary and extraordinary waves is investigated by means of the method of X-ray interferometry. The decrements of E7 type nematic liquid crystal were calculated for different values of external electric field strength and it was established that with increasing electric field strength the values of decrements of ordinary and extraordinary waves increase, tending to the same value.

中文翻译：

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外电场影响下向列液晶的X射线双反射

利用X射线干涉法研究了外部电场对寻常波和异常波的折射率的影响。对于不同的外部电场强度值，计算出E7型向列型液晶的减量，并且可以确定，随着电场强度的增加，常波和异常波的减量值会增加，趋于相同。