%0 Conference Paper %K Thin films %K Electrodes %K Sapphire %K Spatial resolution %K Electric fields %K Ferroelectric materials %K Near-field scanning optical microscopy %K Imaging techniques %K Natural frequencies %K Second harmonic generation %K Metal structures %K Sub-micrometers %A H.Y Liang %A I.I Smolyaninov %A J Li %A V Nagarajan %A Ramamoorthy Ramesh %A C.C Davis %A C.H Lee %B OSA Trends in Optics and Photonics Series %D 2003 %G eng %I Optical Society of American (OSA) %P 1685-1686 %T Electric field induced SHG in PZT thin films studied using near-field scanning optical microscopy %V 88 %X Near-field second harmonic microscopy was applied to imaging of the metal-PZT-metal structure, good contrast between metal and ferroelectric part has been observed. SHG dependence on electric field has been measured locally. © 2002 Optical Society of America.