We all know (I hope!!) about fluence, or energy density. This is the stuff which heats up tissues. But what is ‘power desnity’ and why is it important? Well, power density (or ‘irradiance’ to give it its proper name) is the concentration of power in a spot size area. This is very important in all… Continue reading What is the difference between fluence and power density? Plus, how many photons are in each pulse of energy???
Month: April 2025
Are laser suppliers ‘capping’ the output of their lasers/IPLs? Our next podcast episode…
Launched today – our latest podcast episode and we are discussing why some laser manufacturers/suppliers are capping the outputs of their devices. This is clearly not good! It limits the ability of the laser operators to achieve good clinical results. https://podcasts.apple.com/gb/podcast/are-laser-suppliers-putting-limits-on-machines/id1790635555?i=1000703798480 What this shows is that some suppliers are not training their customers properly. They… Continue reading Are laser suppliers ‘capping’ the output of their lasers/IPLs? Our next podcast episode…
Laser safety glasses – what does ‘DIRM’ mean?
You know I keep banging on and on about safety glasses and how important they are (you only have one pair of eyes!!). I have written a number of times about this topic and how to understand the text on your safety glasses (https://mikemurphyblog.com/2024/02/29/laser-safety-glasses-and-how-to-read-them/). Yet, I find that people still don’t know much about this… Continue reading Laser safety glasses – what does ‘DIRM’ mean?
Our training is “wrong” according to a laser supplier! Here’s our reply…
Recently, one of our clients was told, by her laser supplier, that our training is “wrong”. I am happy to receive criticism, as long as it is justified. However, this particular criticism was just nonsense! So Lisa and I decided to discuss it in one of our podcast episodes… Unfortunately, there are some laser suppliers… Continue reading Our training is “wrong” according to a laser supplier! Here’s our reply…
PMU inks – what is in them?
I recently came across an excellent book called “PMUni Colourant Manual” by Jasmine Diebelius which delves into the world of PMU inks and their constituents. In it, she indicates the pigments used to formulate many commonly-used PMU inks. This has proved very interesting to me, because of the ramifications for laser removal. In one section,… Continue reading PMU inks – what is in them?
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