Abstract
In noncontact manipulation of cells with optical tweezers, we need to use microtools to avoid the damage to the cells by direct laser irradiation. When we manipulate a complex structure such as the microtools, the multi-trap optical tweezers which can trap multiple objects is suitable, however, manipulation speed is not so good. Therefore, we constructed an integrated optical tweezers by using time-shared scanning method for high speed manipulation and generalized phase contrast method for trapping a lot. We proposed manipulation method which suits for the integrated optical tweezers and then we designed the shape of microtools made of SU-8. A new fabrication method of SU-8 microtools was proposed to improve productivity. At last, we made the experiment system and effectiveness of the proposed methods was confirmed.
