Rational Design via Synergistic Combination Leads to an Outstanding Deep-Ultraviolet Birefringent Li2Na2B2O5 Material with Unvalued B2O5 Functional Gene,Journal of the American Chemical Society

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Rational Design via Synergistic Combination Leads to an Outstanding Deep-Ultraviolet Birefringent Li2Na2B2O5 Material with Unvalued B2O5 Functional Gene
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2019-01-18 , DOI: 10.1021/jacs.8b13402
Min Zhang ₁ , Donghai An _{1,

2} , Cong Hu _{1,

3} , Xinglong Chen ₁ , Zhihua Yang ₁ , Shilie Pan ₁

Affiliation

Birefringent materials, the key components in modulating the polarization of light, are of great importance in optical communication and the laser industry. Limited by their transparency range, few birefringent materials can be practically used in the deep ultraviolet (DUV, λ < 200 nm) region. Different from the traditional BO3- or B3O6-based DUV birefringent crystals, we propose a new functional gene, the B2O5 unit, for designing birefringent materials. Excitingly, the synergistic combination of Li4B2O5 and Na4B2O5 generates a new compound, Li2Na2B2O5, with enhanced optical properties. The Li2Na2B2O5 crystal with a size of up to 35 × 15 × 5 mm3 was grown by the top-seeded solution growth (TSSG) method, and its physicochemical properties were systematically characterized. Li2Na2B2O5 features a large amount of birefringence (0.095@532 nm), a short DUV cutoff edge (181 nm) with a high laser-induced damage threshold (LDT, 7.5 GW/cm2 @1064 nm, 10 ns), favorable anisotropic thermal expansion (αa/αb = 5.6), and the lowest crystal growth temperature (<609 °C) among the commercial birefringent crystals. Moreover, the influences of the B2O5 structural configurations on the optical anisotropy were explored. The fascinating experimental results will provide a prominent DUV birefringent crystal and an effective synthesis strategy, which can facilitate the design of DUV birefringent materials.

中文翻译：

通过协同组合的合理设计导致具有未估价的 B2O5 功能基因的出色深紫外双折射 Li2Na2B2O5 材料

双折射材料是调制光偏振的关键部件，在光通信和激光工业中具有重要意义。受其透明度范围的限制，很少有双折射材料可实际用于深紫外 (DUV, λ < 200 nm) 区域。与传统的基于 BO3 或 B3O6 的 DUV 双折射晶体不同，我们提出了一种新的功能基因，即 B2O5 单元，用于设计双折射材料。令人兴奋的是，Li4B2O5 和 Na4B2O5 的协同组合产生了一种具有增强光学性能的新化合物 Li2Na2B2O5。采用顶晶种溶液生长 (TSSG) 法生长了尺寸高达 35 × 15 × 5 mm3 的 Li2Na2B2O5 晶体，并对其理化性质进行了系统表征。Li2Na2B2O5 具有大量的双折射（0.095@532 nm），短 DUV 截止边缘 (181 nm) 具有高激光诱导损伤阈值 (LDT, 7.5 GW/cm2 @1064 nm, 10 ns)、有利的各向异性热膨胀 (αa/αb = 5.6) 和最低的晶体生长温度(<609 °C) 在商业双折射晶体中。此外，还探讨了 B2O5 结构配置对光学各向异性的影响。引人入胜的实验结果将提供突出的深紫外双折射晶体和有效的合成策略，可以促进深紫外双折射材料的设计。探索了 B2O5 结构配置对光学各向异性的影响。引人入胜的实验结果将提供突出的深紫外双折射晶体和有效的合成策略，可以促进深紫外双折射材料的设计。探索了 B2O5 结构配置对光学各向异性的影响。引人入胜的实验结果将提供突出的深紫外双折射晶体和有效的合成策略，可以促进深紫外双折射材料的设计。

更新日期：2019-01-18

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