论文信息 - Formation of linearly polarized light with axial symmetry by use of space-variant subwavelength gratings.

Formation of linearly polarized light with axial symmetry by use of space-variant subwavelength gratings.

We present a novel method for forming linearly polarized axially symmetric beams with various polarization orders that is based on computer-generated space-variant subwavelength gratings. We introduce and experimentally demonstrate that our space-variant polarization state manipulations are accompanied by a phase modification of a helical structure that results from the Pancharatnam-Berry phase. We have verified the polarization properties of our gratings for laser radiation at 10.6-microm wavelength.

[1] J. Davis,et al. Two-dimensional polarization encoding with a phase-only liquid-crystal spatial light modulator. , 2000, Applied optics.

[2] Erez Hasman,et al. Polarization beam-splitters and optical switches based on space-variant computer-generated subwavelength quasi-periodic structures , 2002 .

[3] Erez Hasman,et al. Space-variant Pancharatnam-Berry phase optical elements with computer-generated subwavelength gratings. , 2002, Optics letters.

[4] G. Nordin,et al. Stacked subwavelength gratings as circular polarization filters. , 2001, Applied optics.

[5] M Stalder,et al. Linearly polarized light with axial symmetry generated by liquid-crystal polarization converters. , 1996, Optics letters.

[6] Asher A. Friesem,et al. The formation of laser beams with pure azimuthal or radial polarization , 2000 .

[7] E Hasman,et al. Pancharatnam--Berry phase in space-variant polarization-state manipulations with subwavelength gratings. , 2001, Optics letters.

[8] Z. Bomzon,et al. Formation of radially and azimuthally polarized light using space-variant subwavelength metal stripe gratings , 2001 .

[9] Edward Collett,et al. Polarized Light , 1992, Encyclopedic Dictionary of Archaeology.

[10] Z. Bomzon,et al. Radially and azimuthally polarized beams generated by space-variant dielectric subwavelength gratings. , 2002, Optics letters.

[11] S. Pancharatnam,et al. Generalized theory of interference, and its applications , 1956 .