ABERRATION-CORRECTING METHOD, LASER PROCESSING METHOD USING SAID ABERRATION-CORRECTING METHOD, LASER IRRADIATION METHOD USING SAID ABERRATION-CORRECTING METHOD, ABERRATION-CORRECTING DEVICE AND ABERRATION-CORRECTING PROGRAM

摘要

In one embodiment of an aberration-correcting method, the aberration-correcting method for a laser-irradiating device (1) that concentrates laser light inside a medium (60) that transmits light is characterized in that laser light aberration is corrected so that the point of convergence of the laser light is positioned in the region of the aberration generated in said medium. If the refractive index of the medium (60) is n, the depth of the medium (60) from the plane of incidence to the focal point of the lens (50) is d and the aberration generated by the medium (60) is Ds, said region of aberration is between n x d and n x d + Ds from the incident plane of the medium (60).