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Third harmonic generation structural requirements

The first and third order terms in odd powers of the applied electric field are present for all materials. In the second order term, a polarization is induced proportional to the square of the applied electric field, and the. nonlinear second order optical susceptibility must, therefore, vanish in crystals that possess a center of symmetry. In addition to the noncentrosymmetric structure, efficient second harmonic generation requires crystals to possess propagation directions where the crystal birefringence cancels the natural dispersion leading to phase matching. [Pg.2]


See other pages where Third harmonic generation structural requirements is mentioned: [Pg.118]    [Pg.64]    [Pg.252]    [Pg.19]    [Pg.96]    [Pg.602]    [Pg.144]    [Pg.1377]    [Pg.286]    [Pg.396]   
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