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In second harmonic generation does the intensity of the second harmonic just get bigger the further it travels through the crystal?

April 26, 2017Bigger crystal generation Harmonic intensity travels

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In second harmonic generation does the intensity of the second harmonic just get bigger the further it travels through the crystal?

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A. Basically yes provided that we are phase-matched, and through each part of the crystal we are effectively constructively interfering the second harmonic component. There will come a point of course where you start to “run out” of intensity for the fundamental component as the energy is transfered to the frequency doubled or second harmonic component.