Back in 2016 (I think) I gave a talk to the American Society of Lasers Surgery and Medicine about the theory of Selective Photothermolysis. This is the theory which underpins all of today’s photothermal laser/IPL treatments.
In this talk I discuss the idea behind thermal relaxation time and how it ‘fits’ with treatments. In fact, I talk about how this idea is not correct…
This is quite a scientific discussion, so it does get a wee bit technical. But you might find it useful if you want to have a deeper understanding go this theory.
I am still working on all this stuff to try to get to the bottom of it. In particular, I am trying to figure out the ‘best’ set of parameters which should be applied to hair follicles, blood vessels etc.
Hope this helps,