We transform a linearly polarized Gaussian beam into a radially polarized doughnut beam using an eight-segment spirally varying retarder (SVR) at wavelength of 808 nm, and obtain ≫ 96% of polarization purity at far field distribution. The SVR is designed based on the linear birefringence of ¿-barium borate (¿-BBO) crystal and fabricated using a dry etching technique.


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    Title :

    Radially polarized light generation using segmented spirally varying retarder


    Contributors:
    Lai, W. J. (author) / Tiaw, K. S. (author) / Lim, B. C. (author) / Teo, H. H. (author) / Hong, M. H. (author) / Phua, P. B. (author)


    Publication date :

    2008-12-01


    Size :

    521917 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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