Pulsed Laser Energy Density at Work Surface                
    Typical energy density for various laser applications  
  Laser Application Energy Density Required J/cm2  
Laser Pulse energy Joules CO2 - 10.6um Marking - Ink on Paper 0.4  
  Beam height cm CO2 - 9.3um Marking - PET 0.7      
  Beam width cm CO2 - 10.6um Marking - Glass 1.0  
  Energy density at laser Joules/ cm2 CO2 - 10.6um Marking - Epoxy 2.0  
             
Beam Delivery Demagnification :1  
  Beam height at work surface cm        
  Beam width at work surface cm      
  Energy Density at work surface Joules/ cm2   Handy optics calculations  
          from LightMachinery Inc.