A fractional treatment system can be configured with a laser wavelength that is selected such that absorption of the laser wavelength within the tissue increases as the tissue is heated by the laser (e.g., 1390-1425 nm). Desirably, the laser wavelength is primarily absorbed within a treated region of...http://www.google.co.uk/patents/US7938821?utm_source=gb-gplus-sharePatent US7938821 - Apparatus and method for adjustable fractional optical dermatological treatment
