A new article in EEtimes reports that Harvard University has developed a method to produce collimated light from a laser diode without any lenses.
This could be very interesting!
http://www.eetimes.com/showArticle.jhtml?articleID=209800332
Greetings!
I've been interested in lasers for most of my life, but I've been out of it for many years.
I've just discovered this forum, and I'm amazed at how far technology has advanced over 20 years....back when I was doing lasers, the best you could do as a HeNe 0.5mw tube for several...