上传者: 38640674
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上传时间: 2021-02-10 16:05:22
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文件大小: 542KB
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文件类型: PDF
A novel pre-collimating scheme in laser-focused chromium (Cr) atomic deposition is presented. It consists of three apertures, which are one main pre-collimating aperture at centre and two probing apertures with uniform dimension at both sides of the central one. The calculations show that the Cr ato