Discuss skinrejuvenation's answer to: Which application of diode laser in medicine?

Laser diodes form a subset of the larger classification of semiconductor p-n junction diodes,another method of powering some diode lasers is the use of optical pumping.the difference between the photon-emitting semiconductor laser and conventional phonon-emitting (non-light-emitting) semiconductor junction diodes lies in the use of a different type of semiconductor,detail information you have to have a visit http://www.top-beauty-salons.com and http://www.bjtopbeauty.com ,good luck to you.