All-optical processing by means of vectorial interactions in second-order cascading: novel approaches.
Based on the tensorial nature of second-order nonlinear susceptibilities, we show how two orthogonal field components at frequency omega can interact by means of the generated second harmonic, with a resulting coherent control of one onto the other. All-optical transistor operation and polarization switching are among the signal functions that can be implemented in properly oriented crystals.
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Assanto
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Torelli
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Trillo