Space-selective laser function defects induced by ultra-fast intense laser in LiF crystal

Abstract

In an attempt to form space-selective color centers in LiF crystal, photon-induced color centers were continuously created by focusing an ultra-fast intense laser through a microscope objective and translating the LiF crystal sample perpendicular to the axis of the laser beam. The resulting stable color centers region was induced inside the LiF crystal along the path traversed with the focal point of the laser. The measured absorption spectra of color center regions express that it is possible to form space-selective lasing color centers in LiF crystal by the irradiation of ultra-fast intense laser.