氦氖激光器He-Ne激光器是一種常見的氣體激光器,其高能介質的增益介質由比例(5:1和20:1之間)的混合物組成,總壓強為1,儲存在一個小型放電裝置內。最廣泛使用的氦氖激光器的工作波長為632.8納米,位於可見光譜的紅色部分,是在1962年貝爾實驗室[1][2]中研發的。

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