Abstract

A detailed analysis of the acousto-optical effect in biaxial crystals is performed using the examples of thallium tetratioarsenate (Tl₃AsS₄) and iodic acid (α-HIO₃) crystals of rhombic syngony. The optimum cross sections of the crystals are determined for such acousto-optical devices as deflectors and filters. The prospects for using thallium tetratioarsenate crystal to create high-performance acousto-optical deflectors and quasi-collinear filters in the near- and mid-IR ranges are demonstrated. It is established that the spectral resolution of acousto-optical filters based on this variant of diffraction is comparable to the resolution of quasi-collinear filters with the same length of acousto-optical interaction.

中文翻译：

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基于菱形同构双轴晶体的声光器件

摘要

使用四硫砷​​酸铊 (Tl ₃ AsS ₄ ) 和菱形同晶的碘酸 (α-HIO ₃ ) 晶体的例子对双轴晶体中的声光效应进行了详细分析。晶体的最佳横截面是为诸如偏转器和滤波器之类的声光设备确定的。展示了使用四硫砷酸铊晶体在近红外和中红外范围内制造高性能声光偏转器和准共线滤波器的前景。已确定基于这种衍射变体的声光滤波器的光谱分辨率与具有相同声光相互作用长度的准共线滤波器的分辨率相当。