Generation of achromatic, uniform-phase, radially polarized beams.

摘要: Axially symmetric half-wave plates have been used to generate radially polarized beams that constant phase in the plane transverse propagation. However, since retardance introduced by these waveplates depends on wavelength, it is difficult achromatically. This paper describes a technique suitable for generation of achromatic, with uniform phase. The system contains, among other optical components, an axially quarter-wave plate based total internal reflection. For incident beam distribution, generates extra geometrical term. To correct therefore necessary vortex azimuthally varying distribution form exp( + iθ). We show theoretically component canceled out vortex, resulting Additionally, we present experimental setup able uniform-phase, and results confirm generated has distribution.