Efficient photoinduced second-harmonic generation in Ce-doped lead germanate glasses.
Efficient photoinduced second-harmonic generation in Ce-doped bulk lead germanate glasses is observed. A linear increase of photoinduced second-order nonlinearity with Ce concentration is obtained. The reported glasses can be encoded for frequency doubling with extremely low (as little as 30 W of peak power at 1.064 microm) preparation intensities.
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Dianov
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Starodubov
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Izyneev