Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Laser beam

At 02:33 PM 10/14/99 -0500, you wrote:
What causes
this phenomenon? How to get rid of the annoying straight line? It
prevents me from doing something more interesting. Ordinary
scattering would produce an axially symmetric background, not
a straight line. By the way, a slightly wider beam from a
semiconducting laser pointer behaves the same way.
Ludwik Kowalski

Maybe something in the manufacture process of the glass (perhaps a surface
effect caused by rollers?) You could get a neat crosshair, maybe, by
running it through two plates ;-) This would give you a nice orientation
setup for targeting purposes...

-G-
-----------------------------------------
Gordon Smith
National Center for Physical Acoustics
Coliseum Drive
University, MS 38655
slipstk@olemiss.edu