Two-Dimensional Actuator Using Temperature Sensitive Ferrite by Photo-Thermal Effect

Abstract

Two-dimensional actuator has a feature of a non-contact for applying light energy remotely. It consists of a magnet as a movement, an acrylic plate and the temperature sensitive ferrite mounted in two-dimensional array on the plate. A curie temperature of the ferrite is set about room temperature. For moving the magnet, two ferrites in the opposite direction are irradiated by the laser. A magnetic force decreases by photo-thermal effect. As a result, the movement is controlled in the two-dimensional area.