Electrooptic technique to investigate the scattering phenomena in millimeter-wave band

Electric field visualization system based on photonics technology was presented to demonstrate millimeter-wave scattering phenomena inspection. The measurement system is a so-called spectrum analyzer type in which neither a reference probe nor a cable plugged to the RF source is required for amplitude and phase measurements. We demonstrate the visualization of the electric field scattered by a metal pole. Also, we visualize the scattered field is decreased by the absorber attached onto the metal pole.