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Nondiffracting Bessel beams with polarization state that varies with propagation distance

2015; Optica Publishing Group; Volume: 40; Issue: 23 Linguagem: Inglês

10.1364/ol.40.005451

1539-4794

Ignacio Moreno, Jeffrey A. Davis, Marı́a del Mar Sánchez-López, Katherine Badham, Don M. Cottrell,

Near-Field Optical Microscopy

We generate nondiffracting Bessel beams whose polarization state varies with propagation distance. We use a reflective geometry where a single parallel-aligned spatial light modulator device is used to spatially modulate two orthogonal linear polarizations with two axicon phase profiles. Then, by adding an extra phase retardation radial profile between these linear states, we are able to modulate the state of polarization along the line focus of the axicon. We provide experimental results that demonstrate the polarization axial control with zero-order and higher order Bessel beams.