Abstract: A method of treating mammalian skin tissues for causing a predetermined physiological change in the mammalian skin tissues. A treatment composition of matter is applied onto the mammalian skin. The mammalian skin is irradiated with a first pulse having a power density above an activation threshold power density and with a second pulse. The first pulse is emitted for a duration of from about 1 fem-tosecond to about 1 hour, and the first pulse is separated from the second pulse by an inter-pulse interval of from about 1 microsecond to about 10 seconds. The treatment composition of matter includes a photoreactive substance and is applied in an amount sufficient to cause physiological changes within the mammalian skin tissue upon the mammalian skin tissue being irradiated.

Abstract: A laser apparatus provided with an aiming beam using a method for the injection of both laser light and aiming beam forming light in an optic fiber will be described herein. More specifically, the present disclosure describes a method, an injection module and a laser apparatus designed to inject laser light into the core and aiming beam forming light into the cladding of the optic fiber.