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==Updates for April 2010==
 
==Updates for April 2010==
 
*A FORTRAN program has been written which simulates rays exiting the laser aperture and then focused through a fused silica lens. We are able to determine the smallest spot size attainable as a function of the distance away from the lens and fit the x y projections with Gaussian approximations as shown below.
 
*A FORTRAN program has been written which simulates rays exiting the laser aperture and then focused through a fused silica lens. We are able to determine the smallest spot size attainable as a function of the distance away from the lens and fit the x y projections with Gaussian approximations as shown below.
[[File:r0(2)r0(1).jpg]]
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[[File:r0(2)r0(1).jpg|left|thumb]]
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