Abstract
The microstructure of a poled surface-relief grating of an azobenzene side-chain polymer film is investigated. From the in situ monitoring of diffraction efficiency and second-harmonic generation, as well as dynamiccontact electrostatic force microscopy images, the point group symmetry of C 2u is identified. The polarizationdependent electro-optic measurement of the reflected diffraction order further confirms the optically biaxial structure of the poled surface-relief grating.
| Original language | English |
|---|---|
| Pages (from-to) | 183-185 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 30 |
| Issue number | 2 |
| DOIs | |
| State | Published - 15 Jan 2005 |