Recent content by milton

So to conclude the comments... ...it may work, provided that: 1) The mask is in close contact with the material (since the beam will diverge after the aperture) 2) The material is thin (since the beam will diverge after the aperture) 3) The beam has enough power (since we won't use the full...

Here is an idea: Let's say I want to make really tiny holes in a thin plastic film (~0.2 mm thin plastic film). My laser gives me a spot size of ~0.1 mm, but I want to make even smaller holes, say only 0.03 mm in diameter (30 microns!). If I order a metal plate with a 30 micron small hole in...

Hi! I meant how fast it is possible to "blink" with them (modulate the signal... turning them on and off repeatedly). The reason that I'm asking is that I have had fun building a very lo-fi laser projector with a red laser. I modulate the signal (switching the red laser on and off) up to 1 MHz...

I have learnt that regular cheap green DPSS laser diodes can't be modulated as fast their red or blue counterparts. But how fast will they go? Have anyone tried pushing them to their limit - what did you find?