Submitted by SurprisedPotato t3_10utol4 in askscience
ImmortalScientist t1_j7hjs98 wrote
Reply to comment by SgtSchabing in Why are green and red laser pointers so cheap and available, but yellow ones not so much? by SurprisedPotato
We absolutely do have laser diodes that can output green and cyan (520nm green diodes have been around for years, and 488/492nm diodes are newer but also avaliable), but yellow is still in a gap that we don't have any known way of making a diode for at the moment.
Viewing a single comment thread. View all comments