论文信息 - Concentric ring metal grating for generating radially polarized light.

Concentric ring metal grating for generating radially polarized light.

A subwavelength concentric ring metal grating for visible light (λ=632.8 nm) is designed and fabricated by electron-beam lithography to transform circularly polarized light into radially polarized light. Experimental results are compared to theoretical predictions and the advantages and disadvantages of the element with alternative methods are discussed.

[1] J. Sambles,et al. Optical resonances on sub-wavelength silver lamellar gratings. , 2008, Optics express.

[2] Erez Hasman,et al. Real-time analysis of partially polarized light with a space-variant subwavelength dielectric grating. , 2002, Optics letters.

[3] Y. Fainman,et al. Engineering space-variant inhomogeneous media for polarization control. , 2004, Optics letters.

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

[5] V. Niziev,et al. Influence of beam polarization on laser cutting efficiency , 1999 .

[6] Q. Wei,et al. Generation of radially and azimuthally polarized light by optical transmission through concentric circular nanoslits in Ag films. , 2010, Optics express.

[7] Uriel Levy,et al. Generation of a radially polarized light beam using space-variant subwavelength gratings at 1064 nm. , 2008, Optics letters.

[8] Gerd Leuchs,et al. Generation of a radially polarized doughnut mode of high quality , 2005 .

[9] Gerd Leuchs,et al. Focusing light to a tighter spot , 2000 .

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

[11] Q. Zhan. Trapping metallic Rayleigh particles with radial polarization. , 2004, Optics express.