Generation of radially polarized beams with an image-rotating resonator.
نویسندگان
چکیده
We show how a passive image-rotating optical resonator can be used to convert a linearly polarised, lowest-order Gaussian beam into a radially polarized beam. The image and polarization rotation of the cavity removes the frequency degeneracy of the modes, making it possible to select the radially polarized mode by cavity tuning. With the addition of gain, the same cavity should operate as a radially polarized laser when injection seeded at the proper wavelength.
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عنوان ژورنال:
- Applied optics
دوره 42 18 شماره
صفحات -
تاریخ انتشار 2003