The mirror of high power laser is big. Therefore, the power per unit mirror area
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送交者: DW 于 2010-05-18, 12:13:47:
回答: Consider the high end laser mirror which reflects laser, 由 steven 于 2010-05-18, 11:46:59:
is not necessarily high for a Megawatt laser. The beam can be refocused after emission.
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