On the invasiveness of the electro-optical research method in strong inhomogeneous electric and light fields

V. Yassinskiy, Yu.A. Kuznetsova, Abylkas Saginov Karaganda
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Abstract

Optical research methods are usually considered non-invasive, that is, they do not affect the object of study. However, under certain conditions, this is not the case. In the article, as a result of comparing experimental and calculated kerrograms, it is shown that during electro-optical measurements in nitrobenzene using the Kerr effect, a strong electric field and absorption of radiation from a probing laser affect the properties of the medium under study. An estimate of such influence on the value of the Kerr constant is made. It is found that in the tip-plane system when using a ruby laser, the Kerr constant near the tip changes. The established dependence of the Kerr constant on the distance to the tip made it possible to obtain a calculated kerrogram that coincides with the experimental one. Thus, it is shown that the measuring instruments can influence the results obtained, that is, under certain conditions, the electro-optical research method is invasive. This fact should be taken into account when processing experimental kerrograms.
论电光研究方法在强非均匀电场和光场中的侵入性
光学研究方法通常被认为是非侵入性的,也就是说,它们不影响研究对象。然而,在某些条件下,情况并非如此。在本文中,通过比较实验和计算的Kerr图,表明在利用Kerr效应对硝基苯进行电光测量时,强电场和探测激光辐射的吸收会影响所研究介质的性质。本文估计了这种影响对克尔常数值的影响。研究发现,在尖端-平面系统中,使用红宝石激光器时,尖端附近的克尔常数发生了变化。克尔常数与到尖端距离的关系使计算得到与实验结果一致的克尔图成为可能。由此可见,测量仪器对得到的结果是有影响的,即在一定条件下,光电研究方法是有侵入性的。在处理实验程序时应考虑到这一事实。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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