Abstract In this paper we report on cost-effective fabrication of glass diffractive optical elements dedicated to work over a spectral range from the visible to the mid-infrared. As a test we have developed of checker-board diffraction grating using the hot embossing process. The nickel (Ni) shim fabricated using low-cost electroforming method was used as a mold. We synthesised in-house a new composition of lead-free bismuth-silicate glass, labelled SAB-1A, with good rheological properties and high transmittance up to 3.5 μm. Glass composition and parameters of hot embossing process were optimised to accurately replicate the grating and separate the glass replica from the mold. The quality of the fabricated elements was discussed and examined using a white light interferometer and in experimental setup for generation of diffractive pattern at different wavelengths.

中文翻译：

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使用带电铸镍模具的热压印工艺开发用于宽带红外光学的衍射二元光栅

摘要在本文中，我们报告了玻璃衍射光学元件的成本效益制造，该元件专用于从可见光到中红外的光谱范围内工作。作为测试，我们开发了使用热压印工艺的棋盘衍射光栅。使用低成本电铸方法制造的镍 (Ni) 垫片用作模具。我们在内部合成了一种新的无铅铋硅酸盐玻璃组合物，标记为 SAB-1A，具有良好的流变特性和高达 3.5 μm 的高透射率。热压印工艺的玻璃成分和参数经过优化，以准确复制光栅并将玻璃复制品与模具分离。