This work was partly supported by the National Natural Science Foundation of China (No. 69908001);the Characterization of Optical Company and Laser BeamsⅡof Germany and the internatioual cooperation agreed by DFG and NSFC.
The twisted Laguerre-Gaussian beam was generated by transforming of Hermite-Gaussian beams through an optical system consisting of three rotated cylindrical lenses. The intensity distribution and phase structure of th...