Generation of radial polarized laser beam and its applications for accelerator

We are developing several methods to generate the radial polarization. Various polarizations such as radial/azimuth polarizations can be available for many accelerator applications. One of the applications is for a laser wire monitor, because we can easily obtained fine TEM01 or TEM10 modes from radial polarization with rotating a polarizer. And we will also apply radial polarization for Z-polarized beam generation and broadband EO sampling (3-D femtosecond bunch monitor). We can generate radial polarization from linear polarization via a liquid crystal (LC) cell or 8-divided wave plates. Here we demonstrate and evaluate the radial polarized beam generation by means of these 2 methods. (author)