Most laser systems have a lens to focus the laser energy down to a sale spot diameter (see figure 1 below). However, in many systems, the focal point (where the spot diameter is the smallest) is outside the handpiece assembly. This has a potentially hazardous effect if not properly understood! The problem with this design… Continue reading Laser spot size – how it changes with distance from the target…
Category: Other sciencey stuff
New IPL Masking Technique
I recently published an article in the Aesthetics magazine (Volume 7, Issue 3, Feb 2020) showing my results with a new masking technique in the treatment of angiomas and benign pigmented lesions – click here for my article. In it I show how higher fluences and longer pulsewidths may be used to treat small… Continue reading New IPL Masking Technique
Astronomer Have Spotted A Mysterious Object, Which Is 570 Billion Times Brighter than the Sun | Physics-Astronomy
via Astronomer Have Spotted A Mysterious Object, Which Is 570 Billion Times Brighter than the Sun | Physics-Astronomy Wow!!
Astronomers Spotted Strange Ripples “Unlike Anything Ever Observed” Around a Nearby Star” | Physics-Astronomy
via Astronomers Spotted Strange Ripples “Unlike Anything Ever Observed” Around a Nearby Star” | Physics-Astronomy This is very interesting!!
“The Big Freeze” – cryolipolysis and how it works
It’s the ‘latest’ thing out there but is it as easy as it sounds….? Here’s an article I wrote on this topic a couple of years ago. PDF version Mike. mike@dermalase.co.uk
How many photons are in a laser pulse?
Have you ever wondered how many photons you generate each time you fire a pulse of laser energy? I have! Fortunately, I can work it out because I’m a physicist. It’s the kind of thing us physicists do!! It keeps us off the streets at night…… So, to calculate this number we need to… Continue reading How many photons are in a laser pulse?
