ND stands for neodymium doped yttrium aluminium garnet, which is the medium the laser passes through. Q-Switched mode laser produces 2 beams: one in the infrared range, which, is 1064nm wavelength for darker/black tattoo removal, and a second beam of 532nm wavelength which is useful for light coloured tattoos and superficial skin lesions e.g. skin Pigmentation, Birthmarks and Thread Veins. Machines that are not Q-Switched cannot provide the desired results, as they are not powerful enough to shatter the tattoo ink particles.

How It Works?

 

When ND YAG Q-Switched laser comes into contact with a tattoo the laser light is absorbed by the tattoo ink and it creates a photo acoustic shock wave that releases the heat from the tattoo and shatters into minute particles. When this response shatters the particles this is known as a photo mechanical effect. When the particles are shattered they are then able to be carried away by macrophages and leave the body through the lymphatic system, For this effect only, a Q-Switched laser can be used as a photo acoustic shock wave which is needed to create the photo mechanical effect. Using Lasers without Q-Switch will result in not removing the tattoo.