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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   Message 11,304 of 12,750   
   theotherme@gmail.com to Phil Hobbs   
   Re: Converting Zernike coefficients into   
   25 Apr 13 23:40:04   
   
   I guess it is a really simple one, yes.    
   I have a rectangular transmissive optical element that is heated from one   
   side, setting up a temperature gradient in the x-direction. I have a   
   Shack-Hartmann (SH) set up to measure the phase on this element, and do indeed   
   see the "tilt-x" aberration    
   developing in the x-direction. My SH gives me the amount of tilt as a Zernike   
   coefficient. My problem is to figure out how much (in milliradians, for   
   example) a beam passing through the element will be deflected.   
   That is the immediate need. I would also be interested in a more thorough   
   discussion on the effects of a measured wavefront on a transmitted beam in a   
   textbook or tutorial-type article.   
      
      
      
   On Thursday, April 25, 2013 4:45:26 PM UTC+2, Phil Hobbs wrote:   
   > On 04/25/2013 04:01 AM, theot..rme@gmail.com wrote:   
   >    
   > > I'm looking for a tutorial (primer) on how to use the Zernike coefficients   
   obtained from a Shack-Hartmann wavefront sensor.   
   >    
   > > For example, how to I use the x-tilt coefficient to work out how far my   
   beam will shift?   
   >    
   > >   
   >    
   >    
   >    
   > Is this an adaptive optics application?   
   >    
   >    
   >    
   > Cheers   
   >    
   >    
   >    
   > Phil Hobbs   
   >    
   >    
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   > --    
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   > Dr Philip C D Hobbs   
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