10 watt laser 445 nm wavelength
The amount of photons: 2.24 x 10^19
Total momentum: 2.24 x 10(^19) x 1.48 x 10(^-33)= 3,31 x 10(^-14)
Pulse energy in 1ms duration = 10/1000 = 0.01J
Pulse energy in 1uM = 10/1*10^6 = 0.01mJ
Pulse energy in 1ns 10/1*10^9 = 0.01uJ
Force created = 10000 / 299 720 000 = 3.335*10^-5 N
Pressure created = 3.335*10^-5 / (100*100 uM minimum laser spot) 10*10^-10 = 333kPa