![]() In the 1990s, robotic scanning devices were developed, which allowed the laser beam to be moved across the treatment site in a uniform and precise manner. ![]() Laser energy of a predetermined wavelength was preferentially absorbed by a chromophore, creating thermal absorption by the target more so than surrounding structures, leading to selective tissue heating and destruction. Their article elucidated the tissue-laser interaction leading to selective destruction of an intended target structure, termed a chromophore. Over the next decade, advancements in dermatologic photosurgery developed, including the advent of photodynamic therapy, light-based wound healing and the development of the Nd:YAG (neodymium:yttrium-aluminum-garnet) laser for vascular lesions.īeyond the 1960s, perhaps the biggest leap forward in the field of cutaneous lasers was the development of the theory of selective photothermolysis by dermatologists Rox Anderson and John Parrish in 1983, 4 Dr. ![]() Palm, M.D., M.B.A., medical director of Art of Skin MD in Solana Beach, Calif., and assistant volunteer clinical professor of the division of dermatology at the University of California San Diego. Goldman went on to elucidate the use of both ruby and Q-switched lasers for tattoo removal and pigmented lesions while studying the argon laser for vascular lesions and carbon dioxide lasers for skin lesion destruction. “Other developments and clinical applications soon followed in a flurry of published works,” says Melanie D. 3 In 1963, American surgeon Leon Goldman, a pioneer in applying lasers to dermatologic conditions, reported on the effects of Maiman’s ruby laser in the selective photodestruction of pigmented skin elements such as black hair. 1 In 1960, he introduced a laser composed of a ruby rod emitting light energy at 694nm. 2Īmerican physicist Theodore Maiman was the first to develop a laser used for clinical application. 1 Later, in 1916, he introduced the concept of stimulated emission: photons, by interacting with excited atoms or molecules, could stimulate the emission of new photons having the same frequency, phase, polarization and direction of the first one. In 1905, physicist Albert Einstein proposed how light delivers its energy in chunks, which are represented by photons-discrete quantum particles. The origins of laser technology go back to 1900, when Max Planck, a German theoretical physicist, discovered the relationship between energy and frequency of radiation and concluded that energy could be emitted or absorbed only in discrete chunks, named “quanta.
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