We have improved deformable mirror approach to allow good parabolic deformation for efficient thermal lens compensation. Our design uses an annulus to push onto the back surface of a flat mirror substrate, simply supported at the outer edge, thereby creating a parabolic deformation within the encircled area. We built an assembly using a 25.4 mm diameter, 1 mm thick mirror with a wedge of less than 10 arc seconds that was deformed with a 12 mm diameter annulus at the back of the mirror. Using a Shack-Hartman wavefront sensor we performed careful measurements to characterize the performance of the mirrors.


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    Title :

    Variable focal length on-and off-axis deformable concave and convex mirror and its application for thermal lens compensation


    Contributors:
    Schwarz, J. (author) / Rambo, P. (author) / Smith, I. (author) / Porter, J. (author) / Ramsey, M. (author) / Headley, D. (author)


    Publication date :

    2005-01-01


    Size :

    761929 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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