Photoinduced generation of noncentrosymmetric structures in glassy liquid crystalline polysiloxanes for second harmonic generation

Poling nonlinear optical materials using light is reported. The new method, which combines a light‐ and an electrical‐field effect and is effective on glassy solid‐state materials, could in future be integrated into standard lithographic technology to produce, for example, nonlinear optical waveguides by irradiating through a mask when the electric field is switched on.