Page 111 - Chapter 3 - Fundamentals of Laser/IPL Hair Removal
P. 111
Chapter 3 – Fundamentals of Laser/IPL Hair Removal 1st Edition
Power Densities
A simple way to directly compare lasers and IPLs is to look at their power density outputs. The power density combines the fluence with the pulsewidth, but does not consider the wavelength. Let’s look at the power output for IPLs and lasers typically used in LHR:
Device
Power density (W/cm2)
IPL
2000 - 4000
Diode
200 - 5000
Alexandrite
2500 - 25000
Nd:YAG
3000 - 6000
Table 15 – Comparison of power densities from hair removal devices
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