Tunable supercontinuum light vector vortex beam generator using a q-plate

Spatially coherent multicolored optical vector vortex beams were created using a tunable liquid crystal q-plate and a supercontinuum light source. The feasibility of the q-plate as a tunable spectral filter ( switch) was demonstrated, and the polarization topology of the resulting vector vortex beam was mapped. Potential applications include multi-plexing for broadband high-speed optical communication, ultradense data networking, and super-resolution microscopy. (C) 2013 Optical Society of America