https://blog.wongcw.com/2022/12/30/%e5%8f%b0%e7%a9%8d%e9%9b%bb%e8%a7%a3%e8%ae%803nm%e5%95%86%e6%a9%9f2nm%e9%a0%90%e8%a8%88%e5%9c%a8%e6%96%b0%e7%ab%b9%e8%88%87%e5%8f%b0%e4%b8%ad%e6%8a%95%e7%94%a2/