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


  • Financial support from the BMFT, project no. 03M4059. and from the Volkswagen-Stiftung (project no. I/67 374) is gratefully acknowledged.


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.