HOW DOES THE YAP LASER WORK?
LASER stands for Light Amplification by Stimulated Emission of Radiation. The history of laser began in 1917, when Albert Einstein published his famous quantum theory demonstrating that the light emitted by atoms can be caused either by spontaneous incoherent radiation or by stimulated coherent emission.
Laser emits a coherent light beam whose "light grains" (photons) are identical and in phase. Laser type is defined by the nature of its source and its wavelength.
The YAP laser uses:
- a Nd:YAP (Neodymium-doped Yttrium Aluminium Perovskite)-type crystal,
- a flash lamp as a light source transferring energy to the crystal,
- a device capable of creating a pulsed emission,
- the technical means making it possible to select light ray emission at a wavelength of 1340 nm, which is massively absorbed by tissues and in particular by the water they contain.
The 1340 nm wavelength makes it possible to use an optical fiber to transmit the laser beam.
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