Beam Cube User Guide
Specifications
41
Notes: (a) The power density limitation applies to any surface that the beam hits. For Beam Cube, since the
object plane is outside the instrument, focal spots of much higher power density can be imaged as
long as the power density limit on the optical surfaces is not exceeded.
(b) The Beam Cube will not resolve pulses of energy below 20mJ unless the pulse rate is high. If the
energy deposited in 1/50
th
of a second exceeds 20mJ, then the unit will be able to show the pulses
even though the individual energies are below 20mJ.
(c) If the beam power or energy density on the entrance window exceeds specifications, the window
can be removed and not used, assuming that the power and energy density on the first beam
splitter is below the damage threshold.
