We report a novel method for selective laser energy delivery into biological tissues based on refractive-index differences. As a specific example, Ho:YAG laser energy is delivered into fat preferentially over other soft tissue, despite the fact that water has a higher absorption coefficient at this wavelength than fat.
© 2000 Optical Society of America
Yacov Domankevitz, Jerry Waldman, Charles P. Lin, and R. Rox Anderson, "Selective delivery of laser energy to biological tissue based on refractive-index differences," Opt. Lett. 25, 1104-1106 (2000)