Re: Laser Difraction

From: Louis Boyd (boyd_at_apt0.sao.arizona.edu)
Date: 06/22/04


Date: Tue, 22 Jun 2004 11:25:31 -0700

It's rough when senility takes over.
Yes, divergence...as in divergence from reality...
It can be embarrasing.

--
Lou Boyd
Sam Goldwasser wrote:
> And I guess both you guys mean divergence. :)
>>
>>>I have a 7mW NeHE laser here.  I have read that using something
>>>similar to a telescope I can significantly reduce difraction on the
>>>beam.  I have a telescope here as well, but regardless of how I
>>>point the laser through the telescope the beam either comes out
>>>bigger than before or not at all.  I must be doing something wrong,
>>>but what, and how do I do it right!?
>>>Thanks!
>>
>>I'll assume you mean dispersion rather than diffraction.


Relevant Pages

  • Re: Laser Difraction
    ... >> I have a 7mW NeHE laser here. ... I have a telescope here as well, but regardless of how I point ... >> the laser through the telescope the beam either comes out bigger than ... but its angle of divergence is smaller. ...
    (sci.optics)
  • Re: Laser Difraction
    ... > I have a 7mW NeHE laser here. ... > a telescope I can significantly reduce difraction on the beam. ... > telescope the beam either comes out bigger than before or not at all. ... but its angle of divergence is smaller. ...
    (sci.optics)
  • Re: Practically achievable beam divergence for white, non-coherent light
    ... Basically the searchlight is a telescope run backwards. ... divergence depends upon the size of the source. ... point rather than a spread out light source, ... Go look at collimated beam sources for more of what you need to know about ...
    (sci.optics)
  • Laser Difraction
    ... I have a 7mW NeHE laser here. ... a telescope I can significantly reduce difraction on the beam. ... telescope the beam either comes out bigger than before or not at all. ...
    (sci.optics)