Page 308 - Blog Posts v1
P. 308
You can view the above video at https://youtu.be/iafTDXYiEcY
So, when laser light enters the skin it loses its coherence, its minimal divergence (collimation) and its wavelength changes due to refraction. I would argue that this light, inside the skin, cannot now be considered as ‘laser’ light! It has lost two of its unique properties, and its wavelength has changed.
Can a monochromatic beam of light be called ‘laser’ when it is highly divergent and incoherent? I don’t think so.
Mike’s Blog Posts 308
