Dye modules are available for some lasers to convert 532 nm to 650 nm or 585 nm light which allows one laser system to safely and effectively treat multi-color tattoo inks. When dye modules take 532 nm laser wavelength and change it, there is a loss of energy. Treatments with dye packs, while effective for the first few treatments, many not be able to clear these ink colors fully. The role of dye lasers in tattoo removal is discussed in detail in the literature.
A tattoo is an ink design added into the skin, generally with the help of a needle. This procedure has prehistoric roots, it has been used by people for thousands of years, in various forms. Examples can be seen in the majority of human cultures, and despite some societal stigma, tattoos are getting to be ubiquitous in the West, with an estimated 25 percent of American people are wearing at least one by the end of the twentieth century.