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Generation of vector beams with arbitrary spatial variation of phase and linear polarization using plasmonic metasurfaces

Optics Letters, ISSN: 1539-4794, Vol: 40, Issue: 14, Page: 3229-3232
2015
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Article Description

A novel method is proposed to generate vector beams with arbitrary spatial variation of phase and linear polarization at the nanoscale using compact plasmonic metasurfaces with rectangular nanoapertures. The physical mechanism underlying the simultaneous control of light polarization and phase is explained. Vector beams with different spiral phasefronts are obtained bymanipulating the local orientation and geometric parameters of the metasurfaces. In addition, radially and azimuthally polarized vector beams and doublemode vector beams are achieved through completely compensating for the Berry phase, which provides additional degrees of freedom for beam manipulation.

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