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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       >        >        >        > --        >        > Dr Philip C D Hobbs       >        > Principal Consultant       >        > ElectroOptical Innovations LLC       >        > Optics, Electro-optics, Photonics, Analog Electronics       >        >        >        > 160 North State Road #203       >        > Briarcliff Manor NY 10510       >        >        >        > hobbs at electrooptical dot net       >        > http://electrooptical.net              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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