Investigation of focusing features of a spiral binary axicon

It is well known that polarisation transformations can occur not only under sharp focusing conditions, but also in the paraxial regime. We investigate such spatial polarisation transformations of three-dimensional distribution in the focal region in the paraxial regime due to the addition of a lens by a spiral binary diffraction axicon. Theoretical analysis demonstrates the possibility of such transformations. We demonstrate that, in these cases, a zero intensity is formed on the beam axis before the focal plane, and an intensity peak is formed on the beam axis after the passage of the focal plane. The experimental results obtained are in good agreement with the simulation results. We believe that results can be useful in the field of optical manipulation of nano- and microscale objects, as well as in the field of material processing.

[1]  Uriel Levy,et al.  Effect of radial polarization and apodization on spot size under tight focusing conditions. , 2008, Optics express.

[2]  Mark R. Dennis,et al.  Singular optics: optical vortices and polarization singularities , 2009 .

[3]  Toufic G. Jabbour,et al.  Vector diffraction analysis of high numerical aperture focused beams modified by two- and three-zone annular multi-phase plates. , 2006, Optics express.

[4]  Masud Mansuripur,et al.  Angular momentum of circularly polarized light in dielectric media. , 2005, Optics express.

[5]  P. Kazansky,et al.  Polarization sensitive elements fabricated by femtosecond laser nanostructuring of glass [Invited] , 2011 .

[6]  S. Khonina,et al.  Controlling the contribution of the electric field components to the focus of a high-aperture lens using binary phase structures. , 2010, Journal of the Optical Society of America. A, Optics, image science, and vision.

[7]  Qiwen Zhan,et al.  Three-dimensional focus shaping with cylindrical vector beams , 2006 .

[8]  Jian Wang,et al.  Focusing properties of concentric piecewise cylindrical vector beam , 2007 .

[9]  M J Padgett,et al.  Mechanical equivalence of spin and orbital angular momentum of light: an optical spanner. , 1997, Optics letters.

[10]  Ilya Golub,et al.  Engineering the smallest 3D symmetrical bright and dark focal spots. , 2013, Journal of the Optical Society of America. A, Optics, image science, and vision.

[11]  Sadik Esener,et al.  Toward terabyte two-photon 3D disk. , 2007, Optics Express.

[12]  M. Babiker,et al.  The angular momentum of light , 2012 .

[13]  M. Padgett,et al.  Orbital angular momentum: origins, behavior and applications , 2011 .

[14]  G Leuchs,et al.  Sharper focus for a radially polarized light beam. , 2003, Physical review letters.

[15]  Nir Davidson,et al.  High-numerical-aperture focusing of radially polarized doughnut beams with a parabolic mirror and a flat diffractive lens. , 2004, Optics letters.

[16]  Daomu Zhao,et al.  4Pi focusing of spatially modulated radially polarized vortex beams. , 2012, Optics letters.

[17]  Nikolay L. Kazanskiy,et al.  Vortex phase transmission function as a factor to reduce the focal spot of high-aperture focusing system , 2011 .

[18]  G. Saavedra,et al.  Chapter 1 The Resolution Challenge in 3D Optical Microscopy , 2009 .

[19]  Nir Davidson,et al.  Toward a spherical spot distribution with 4pi focusing of radially polarized light. , 2004, Optics letters.

[20]  Nir Davidson,et al.  A three dimensional dark focal spot uniformly surrounded by light , 2007 .

[21]  S. N. Khonina,et al.  Application axicons in a large-aperture focusing system , 2014, Optical Memory and Neural Networks.

[22]  Alexey P. Porfirev,et al.  Polarization conversion when focusing cylindrically polarized vortex beams , 2016, Scientific Reports.

[23]  Svetlana N. Khonina,et al.  Shaping of spherical light intensity based on the interference of tightly focused beams with different polarizations , 2014 .

[24]  Luping Shi,et al.  Creation of a needle of longitudinally polarized light in vacuum using binary optics , 2008 .

[25]  Kishan Dholakia,et al.  Optical manipulation of nanoparticles: a review , 2008 .

[26]  S. Khonina,et al.  High-aperture binary axicons for the formation of the longitudinal electric field component on the optical axis for linear and circular polarizations of the illuminating beam , 2013 .