Deep-ultraviolet (DUV) light sources are critical owing to their high photon energies and small diffraction limits, and synthetic quartz glass (SQ) is suitable for the Faraday rotators of DUV light. The Verdet constant in SQ was evaluated within the wavelength range of 190–300 nm. In addition to a high Verdet constant over the DUV region, this material exhibits a high transmittance without transitional absorption bands. The Verdet constants were found to be 70.1 rad/(T·m) at 193 nm, which is the shortest observed wavelength for silica glass. SQ glass has excellent structural properties; thus, it is suitable as a DUV Faraday rotator for high-average-power optical isolators.

中文翻译：

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深紫外光源合成石英玻璃中Verdet常数的波长依赖性

深紫外（DUV）光源由于其高的光子能量和小的衍射极限而变得至关重要，而合成石英玻璃（SQ）适用于DUV光的法拉第旋转器。在190-300 nm的波长范围内评估了SQ中的Verdet常数。除了在DUV区域具有较高的Verdet常数外，该材料还具有较高的透射率，而没有过渡吸收带。发现在193 nm处的Verdet常数为70.1 rad /（T·m），这是石英玻璃观察到的最短波长。SQ玻璃具有优良的结构性能；因此，它适合用作高平均功率光学隔离器的DUV法拉第旋转器。