Wu Zhencheng, Li Huimin, Zhang Zhiyuan, Su Xin, Shi Hongsheng, Huang Yi-Neng
Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining, Xinjiang 835000, China.
Research Center for Crystal Materials, CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics& Chemistry, CAS, Urumqi 830011, China.
Inorg Chem. 2024 Jan 22;63(3):1674-1681. doi: 10.1021/acs.inorgchem.3c03904. Epub 2024 Jan 4.
Zero-order waveplates are widely used in the manufacture of laser polarizer waves, which are important in polarimetry and the laser industry. However, there are still challenges in designing deep-ultraviolet (DUV) waveplate materials that satisfy large band gaps and small optical anisotropy simultaneously. Herein, three cases of aluminum sulfate fluorides: NaAlSOF, LiNHAl(SO)F, and LiKAl(SO)F, with novel [AlSOF] layers or isolated [AlSOF] trimers were designed and synthesized by the rational assembly of [AlOF] and [SO] groups through a hydrothermal method. Experiments and theoretical calculations imply that these three possess short cutoff edges (λ < 200 nm) and small birefringence (0.0014-0.0076 @ 1064 nm), which fulfils the prerequisite for potential DUV zero-order waveplate materials. This work extends the exploration of DUV zero-order waveplate materials to the aluminum sulfate fluoride systems.
零级波片在激光偏振器波的制造中被广泛应用，这在偏振测量和激光工业中很重要。然而，在设计同时满足大带隙和小光学各向异性的深紫外（DUV）波片材料方面仍然存在挑战。在此，通过水热法将[AlOF]和[SO]基团合理组装，设计并合成了三种具有新型[AlSOF]层或孤立[AlSOF]三聚体的硫酸铝氟化物：NaAlSOF、LiNHAl(SO)F和LiKAl(SO)F。实验和理论计算表明，这三种材料具有短截止边缘（λ < 200 nm）和小双折射（在1064 nm处为0.0014 - 0.0076），这满足了潜在DUV零级波片材料的先决条件。这项工作将DUV零级波片材料的探索扩展到了硫酸铝氟化物体系。
