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hjq6128333新蟲 (小有名氣)
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[求助]
關(guān)于稀土發(fā)光的一個(gè)句子,求大神翻譯
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| The main problem with pumping with a light source at 2 μm in Pr3+ doped chalcogenide glass is that the level F2-H6 has a long lifetime, of about 2.7 ms. |
金蟲 (正式寫手)
新蟲 (小有名氣)
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論文上說的laser action at 7.5 μm,請(qǐng)問這個(gè)7.5μm指是什的波長(zhǎng)? (The main advantage of terbium is the possibility of obtaining laser action at 7.5 μm.) 另外The main reason why this efficiency is much higher than for Dy3+ is the fact that the absorption cross section at 2.04 μm is four times larger than that for Dy3+ (at 1.71 μm). 中, 2.04 μm指的是什么。 求大神幫忙啊,求科普 |
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