I made this in about 30 seconds. It's just a cylinder with Incandescence and glow intensity. When you select a color in the incandescence, bump up the brightness (V value) higher than 1. You can also bump up the saturation (S value) higher than 1 as well. Just keep playing with those two values and the glow setting until you get the desired look. If you composite the laser onto an image like I did, the glow will be MUCH MUCH less. In otherwords, you'll probably want to exagerate the glow effect in maya render to make it look correct in compositing. Hope this helps.