We propose the first experimental approach for both generation and characterization of high quality Devil's vortex-lenses. These new type of lenses, able to produce a sequence of optical vortices, are addressed onto a ...
Caraquitena Sales, José; Beltrán, Marta; Llorente, Roberto; Martí Sendra, Javier; Muriel, Miguel A.(Optical Society of America, 2011)
[EN] We propose and analyze a novel (to our knowledge) approach to implement the spectral self-imaging effect of optical frequency combs. The technique is based on time-domain multilevel phase-only modulation of a periodic ...