Natural Science Forum / Physics / Optics / January 2005

Lot of press going about but I thought this was one of the
more interesting
http://www.kansascity.com/mld/kansascity/news/nation/10633197.htm?1c

Is an anti-reflective coating for 1064 nM absolutely totally useless
at 808nM?
Also, do YAG rods that are side pumped with diodes generally have AR
coatings evaporated on the sides (808nM) as well as the ends (1064)? In

Will it be easier to burn things if i remowe IR filter?
Best Regards
Kre¹o Bukviæ

In December I bought a 140mW dpss from Lambdapro. Communications with
these people was good and they did not put down other laser companies,
which created trust. Overall it was a very pleasant transaction.
The laser is a UG-120 mW model that is rated at over 140 mW with the

The AR coating on my yag rod is damaged and I am curious how much this would
affect the performance.  The laser is supposed to put out 30 watts max
(multimode) and the rod is 3mm X 50mm with an arc lamp pump.  The OC is 10%
transmission.  The rod still has good polished faces but ...

I do not know why this post didnt "come thru".
Will it be easier to burn things with IR filter remowed (modded greenie)?
What diffrence will it make to beam?
Best Regards

Has anyone used this film?
It sounds interesting but there is a severe lack of info on the website.
http://www.litiholo.com/hologram_film.htm
I have emailed them for more info and will post the reply if others are

Has anyone had a chance to check out the new HL6525MG or HL6526FM laser
diodes from Opnext?  Spec sheets are here:
http://www.photonic-products.com/products/laserdiodes_visible/hitachi_visible_ds
/hl6525mg.pdf
http://www.photonic-products ...

I command a Civil Air Patrol squadron in Cincinnati, and one of my
cadets asked about the lasers being used to shine into aircraft
cockpits, and "blinding" the pilots.  Since we are aviation-oriented
(USAF Auxiliary), this is of interest to us.  I'm considering teaching

I am currently working on a program that simulates a beam propagating. You
can allow the beam to interact with lenses and apertures. I am trying to
write a front end for this currently command line program, and was
wondering if anyone had heard of similar projects?

Wouldnt it be very hard for someone to aim a green laser pointer at an
aircraft thats miles away?  Seems a little sketchy to me
Saw some cool powerful lasers here
http://www.GreenLaserBeam.com

Forgive me if this has been answered before, but I could not find an
answer when doing a search...
If one were to build a whitelight DPSS system by combining the beams
of three laser modules, what output power would each of the following

The lasers can temporarily blind pilots. A cluster of incidents
received wide attention between Christmas and New Year's Day, and the
FBI says at least four more have occurred in the past week. Authorities
have continued to rule out terrorism.

I found a picture on this site :
http://sol.sci.uop.edu/~jfalward/refraction/refraction.html
More specific picture
http://sol.sci.uop.edu/jfalward/refraction/criticalanglefiverays.jpg.

If you already know that object planes get imaged into image planes, the
condition can made to appear "obvious."
Every object point on the intersection between the object plane and the lens
plane coincides with its image point. Light emanates from such a point with