Recent content by endmile

Not at all, I appreciate your replies. The pinhole suggestion may be something to look at. Actually, the pinhole that I have now involves a somewhat complicated setup. I focus the light down to about 1mm to go through the pinhole. The laser is so powerful that it actually causes the air to break...

There are rotating diffusers available, and those are a great solution for CW lasers. Unfortunately, this solution does not work for short pulses. As you said, the intensity spots are evened out over time. With a 5 ns pulse, there is not sufficient time for the diffuser to rotate enough to even...

I am trying to use an Nd:YAG laser for pulsed laser melting My laser is an EKSPLA NL313, which has a 5 ns pulse. I need to produce a decent size spot (~1 cm2) with a fluence of about 1 J/cm2 for the laser melting, which is no problem with this laser. However, the spot needs to be very uniform in...