I have laser of 650 nm wavelngth 50 mW power with 16 mm diameter of light source. I have irradiated the laser for 30 min to find out my results.
I want to calculate the laser power density and energy density
Please see the mathematics define as in picture
Thanks Raad Sh. Alnayli
Laser Power/ spot beam area on the sample or screen
Laser energy/ spot beam area on the sample or screen
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