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Opt Lett. 2003 Mar 15;28(6):429-31.

Highly efficient direct third-harmonic generation based on control of the electro-optic effect in quasi-periodic optical superlattices.

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National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China.


We present a method for controlling the efficiency of direct third-harmonic generation in quasi-periodic optical superlattices by means of the electro-optic effect. The calculated results manifest that this method is extremely efficient for achieving high efficiency of direct third-harmonic generation in predesigned quasi-phase-matched coupled parametric processes and is feasible at any given fundamental intensity. In addition, we demonstrate that the electro-optic control approach is significantly better than the temperature-control method.

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