Head limiting movement range of laser spot and atomic force microscope having the same

摘要

Provided are a head having improved usability by limiting a movement range of a laser spot and an atomic force microscope having the same.;A head according to an exemplary embodiment of the present disclosure is a head measuring bending of a cantilever by using a laser beam reflected on the surface of the cantilever in order to acquire information on a sample surface by using a tip of the cantilever. The head includes: a spot moving means configured to move a laser spot so as to position the laser spot on the surface of the cantilever; and a movement limiting means configured to limit a movement range of the laser spot moved by the spot moving means in a predetermined range.