Abstract
Laser trapping is a technology that uses laser to manipulate micro objects. We have carried out experiments on laser trapping of micro indeterminate object in water. Micro rod is one of the indeterminate objects. The experimental results show that it is possible to manipulate micro rod in two-dimensions freely and the micro rod can stand upright, rotate, and spin. Three-dimensional manipulations were also possible because of the irradiation from the lower side. It is thought that the rotation operation of the micro rod is useful as a driving source of micro stir element and the micro machine.
