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Linear optical characterization of meter-size zinc sulfide polycrystal

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【作者】 赵小玻武奎路大治张琮于浩海张怀金

【Author】 Xiaobo Zhao;Kui Wu;Dazhi Lu;Cong Zhang;Haohai Yu;Huaijin Zhang;State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University;Sinoma Synthetic Crystal (Shandong) Co., Ltd.;

【通讯作者】 武奎;路大治;张琮;

【机构】 State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong UniversitySinoma Synthetic Crystal (Shandong) Co., Ltd.

【摘要】 Zinc sulfide (ZnS) has promising linear and nonlinear optical properties and has shown important applications in military and modern devices. In this work, coupled with the chemical vapor deposition (CVD) method and hot isostatic pressing (HIP), we successfully grew a high-transmittance and low-absorption-coefficient polycrystalline ZnS with a size of 1 m×2 m and a thickness of 20 mm. The linear optical properties, including the UV-vis-NIR transmission spectrum, infrared spectrum, and refractive index, were systematically characterized, which shows that the present ZnS polycrystal exhibits a wide transmission range from 0.34 to 15.00μm, covering two important atmospheric windows. Moreover, its Sellmeier equation was achieved and fitted as a modification of previous studies. According to the refractive index and transmission spectrum,optical loss was calculated to be <3.5%from 1 to 10μm. All the results indicate that the present sample has comparable properties with the single crystals and should have potential applications as a functional material.

【Abstract】 Zinc sulfide(ZnS) has promising linear and nonlinear optical properties and has shown important applications in military and modern devices. In this work, coupled with the chemical vapor deposition(CVD) method and hot isostatic pressing(HIP), we successfully grew a high-transmittance and low-absorption-coefficient polycrystalline ZnS with a size of 1 m × 2 m and a thickness of 20 mm. The linear optical properties, including the UV-vis-NIR transmission spectrum, infrared spectrum, and refractive index, were systematically characterized, which shows that the present ZnS polycrystal exhibits a wide transmission range from 0.34 to 15.00 μm, covering two important atmospheric windows. Moreover, its Sellmeier equation was achieved and fitted as a modification of previous studies. According to the refractive index and transmission spectrum,optical loss was calculated to be < 3.5% from 1 to 10 μm. All the results indicate that the present sample has comparable properties with the single crystals and should have potential applications as a functional material.

【基金】 supported by the National Natural Science Foundation of China (Nos. 52025021, 52372009, and 52272004);the Qilu Young Scholar Program of Shandong University
  • 【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2025年01期
  • 【分类号】O734;O43
  • 【下载频次】12
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