Abstract: A method for material processing and laser processing device for material processing. The laser machining device has a laser beam source to provide a pulsed processing laser beam, a laser beam aligning unit to output couple the laser beam in the direction toward a area of material to be machined, and an emission device to emit a photosensitizer in the direction toward a surrounding area of the area of the material to be machined, wherein the emission device is connected to the aligning unit.

Abstract: Device and method for lasering biological tissue. In a general aspect, the device for lasering a biological tissue may include a source configured to provide a pulsed laser beam, an outcoupler configured to couple the laser beam towards the tissue, and an outfeeder configured to feed a photosensitizer in a direction of the tissue where the outfeeder is connected to the outcoupler. In another general aspect, a method for lasering a biological tissue may include applying a photosensitizer towards the tissue, providing a pulsed laser beam, and lasering a site of the tissue with the pulsed laser beam where the laser beam is emitted with a temporal width at a half maximum range from about 1 ps to about 100 ps.

Abstract: A method of laser machining biological tissue including the provision of a pulsed processing laser beam and the processing of tissue by radiation using the pulsed processing laser beam, wherein the processing laser beam has a wavelength of the laser pulses ranging between 700 nm and 1400 nm, a time duration of the laser pulses ranging between 5 ps and 100 ps, and an energy density of the laser pulses on the surface of the tissue ranging between 1.5 J/cm2 and 7.5 J/cm2.