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An excellent deep-ultraviolet birefringent material based on [BO2] infinite chains.


ABSTRACT: Birefringent materials play indispensable roles in modulating the polarization of light and are vital in the laser science and technology. Currently, the design of birefringent materials operating in the deep-ultraviolet region (DUV, λ ≤200 nm) is still a great challenge. In this work, we developed a new DUV birefringent crystal LiBO2 based on [BO2] infinite chains in the Li-B-O system, which simultaneously achieves the shortest UV cutoff edge (164 nm) and the largest birefringence (≥0.168 at 266 nm) among all the reported borate-based DUV birefringent materials. Single crystals of LiBO2 with dimensions up to Ø55 × 34 mm3 were grown by the Czochralski method, providing access to large-sized single crystal with low cost. Moreover, it has a high laser damage threshold and stable physicochemical properties. These outstanding characters unambiguously support that LiBO2 can be an excellent birefringent material for DUV application.

SUBMITTER: Zhang F 

PROVIDER: S-EPMC9372186 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature

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An excellent deep-ultraviolet birefringent material based on [BO<sub>2</sub>]<sup>∞</sup> infinite chains.

Zhang Fangfang F   Chen Xinglong X   Zhang Min M   Jin Wenqi W   Han Shujuan S   Yang Zhihua Z   Pan Shilie S  

Light, science & applications 20220812 1


Birefringent materials play indispensable roles in modulating the polarization of light and are vital in the laser science and technology. Currently, the design of birefringent materials operating in the deep-ultraviolet region (DUV, λ ≤200 nm) is still a great challenge. In this work, we developed a new DUV birefringent crystal LiBO<sub>2</sub> based on [BO<sub>2</sub>]<sup>∞</sup> infinite chains in the Li-B-O system, which simultaneously achieves the shortest UV cutoff edge (164 nm) and the l  ...[more]

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