Wow - 18mw of HeNe is BRIGHT!
Theis tube is pretty much brand new. Not a mark on it or the PSU.
...and now, what I know you really want are - BEAMSHOTS!
Running an interferometer setup:
![](http://farm8.staticflickr.com/7425/11939498183_07dfc1a3fb_c.jpg)
hene-2 by Christopher Purdy, on Flickr
And just some multiple bounces between mirrors..
![](http://farm8.staticflickr.com/7433/11939495013_fce8972e7b_c.jpg)
hene-1 by Christopher Purdy, on Flickr
And just for fun - in black and white... Its a cool look..
![](http://farm6.staticflickr.com/5537/11939499423_520e41988d_c.jpg)
hene-1-bw by Christopher Purdy, on Flickr
Theis tube is pretty much brand new. Not a mark on it or the PSU.
...and now, what I know you really want are - BEAMSHOTS!
Running an interferometer setup:
![](http://farm8.staticflickr.com/7425/11939498183_07dfc1a3fb_c.jpg)
hene-2 by Christopher Purdy, on Flickr
And just some multiple bounces between mirrors..
![](http://farm8.staticflickr.com/7433/11939495013_fce8972e7b_c.jpg)
hene-1 by Christopher Purdy, on Flickr
And just for fun - in black and white... Its a cool look..
![](http://farm6.staticflickr.com/5537/11939499423_520e41988d_c.jpg)
hene-1-bw by Christopher Purdy, on Flickr