Consider a cw laser consisting of two mirrors (r, - 100%, r2-99%, the distance between mirrors l) and a laser element pumped by a diode laser or a flash-lamp. how the pumping power threshold will change if (i) r, is reduced from 99% to 95%, (ii) the emission cross section is increased from to 2 (ii) the life-time of the metastable level is increased from to 20% (assume four-level laser scheme.)
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Physics, 21.06.2019 21:30, XCNajera2003
Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
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Consider a cw laser consisting of two mirrors (r, - 100%, r2-99%, the distance between mirrors l) an...
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