A method is proposed for the production of two-colour radiation with monochromatic components, the polarisation vectors of which rotate in opposite directions, and the rotation speed is controlled by the sound frequency. The method is based on acousto-optic (AO) interaction upon double passage of two-colour radiation through an AO cell made of a gyrotropic crystal; the method efficiency is demonstrated by the example of radiation from an Ar laser generating at wavelengths of 0.488 and 0.514 μm and an AO cell made of TeO₂, operating at a sound frequency of 60 MHz.

中文翻译：

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产生具有沿相反方向旋转的偏振组件的双色辐射

提出了一种产生具有单色分量的双色辐射的方法，其偏振矢量沿相反方向旋转，并且旋转速度由声频控制。该方法基于双色辐射两次通过由回旋晶体制成的 AO 单元时的声光 (AO) 相互作用；该方法的效率由 Ar 激光器产生的波长为 0.488 和 0.514 μm 的辐射和由 TeO ₂制成的 AO 池在 60 MHz 的声频下工作的例子证明。