An optical actuator has some interesting characteristics, such as no generation of magnetic noise and receiving the energy remotely. A novel micromanipulator using photothermal effect is proposed. It consists of three optical fibers. One end of the fiber is cut for a bevel and painted with black color. A photothermal effect is occurred responding to the incident beam at the end of optical fiber. This effect makes the end of fiber stretching vibration. It can release a ball with 2.5 mm of diameter and a microlens currently held by light energy. The mechanism of photothermal vibration is also studied.
Recently, micro-actuators are attracted attention of advance technology. An optical actuator features characteristics such as energy supplied remotely in wireless and no generation of magnetic noise. In this report, a new type of a micro bubble actuator using photo-thermal effect is proposed The micro bubble by photothermal effect has advantage that to appear and disappear is easily to control. It is possible to drive micro-scale objects and an optical switch. An experimental set up consists of a laser diode with 450mW of power, water road and an optical microscope as observation. The micro bubble is produced irradiated laser beam on to black liquid and/or transparent liquid on the black surface. The size of micro bubble is from 50 to several hundred micro-meters. Three difference methods are proposed such as driving micro object, rotating micro object, and switching.
An optical actuator has such features as controlled by optical energy in wireless and no generation of magnetic noise. A new type of an actuator driven by optical energy is proposed. The actuator is composed of three optical fibers as a leg jointed to a base. The optical fibers are vibrated by optical energy using photothermal effect. The photothermal actuator travels a distance of linearly 25 micrometer per second at 12mW input power. It is also possible to be controlled in two-dimensional movement by controlling the position of a vibrating optical fiber. The photothermal actuator can move not only straight but turn the right and left freely. It succeeds to control the photothermal actuator 12 degrees turn to the right and 13 degrees to the left in 90 seconds.
An optical actuator features characteristics such as energy supplied remotely in wireless and no generation of magnetic noise. We proposed a new type of an actuator that is driven by the light. It is composed of three optical fibers as a leg jointed to a base. The fiber cut at an angle at the end is occurred a photothermal effect respond to flashed incident beam with a constant cycle from other side of the fiber. This effect makes the end of fiber a stretching vibration. A size of the optical actuator is 3 x10 mm and it moved 25 micro-mm per second at 12mW (4Hz) of input power. We discuss these experimental procedures and the results of movement.