METHOD OF THE LASER FORMATION OF THE IMAGES IN THE OPTICALLY TRANSPARENT SOLID MEDIUM Russian patent published in 2007 - IPC C03B33/09 B23K26/00 

FIELD: decorative art; methods of the laser formation of the images inside the optically transparent solid mediums.

SUBSTANCE: the invention is pertaining to the methods of the formation of the images inside the optically transparent solid mediums by their laser treatment at formation of the decorative and art images inside the transparent solid medium, manufacture of the souvenirs and other similar products. The methods of the laser formation of the images inside the optically transparent solid medium includes focalizing the pulsing laser radiation in the preset point within the volume of the medium, action on it with the laser radiation of the picosecond duration at the peak power P exceeding the threshold power of_{Рthr of the self-focusing of the laser radiation in the medium, and at the power density of W exceeding the threshold valueof the power density of Wthr for the volumetric breakthrough of the substance of the medium, relocation of the laser radiation inside the medium according to the preset rule. The technical result of the invention is the reduction of the threshold power of formation of the defects, the increase of the resolution of the image in the plane perpendicular to the laser beam and the increase of the image contrast.}

EFFECT: the invention ensures reduction of the threshold power of formation of the defects, the increase of the resolution of the image in the plane perpendicular to the laser beam and the increase of the image contrast.

9 cl, 3 ex