Our group is doing research on optical science and extending the research results in many application fields. We have developed optical measurement, fabrication, and control techniques in nanometric region with laser light. We have developed high resolution optical microscopy, multiphoton process for optical measurement and fabrication, probe microscopy and manipulators, three dimensional measurement with high-speed and high resolution imaging stacking technique. because the film separates the environment of the specimen from the vacuum in the microscope.