Experimental verification of focus tailoring using circularly polarized vortex beams with annular pupil mask

Yang, Shuangyang; Powers, Peter E.; Zhan, Qiwen

doi:10.1016/j.optcom.2009.09.018

Cited by 6 publications

(8 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A simpler alternative has also been proposed using charge one optical vortex beam with the appropriate circular polarization handness [3]. We have recently confirmed such prediction with two photon fluorescence on micro-sphere beads [4]. Using annular illumination with charge +1 left hand circular polarization, a flattop intensity profile can be obtained due to a strong longitudinal field component ( Fig.…”

Section: Flattop Focusing With Vectorial Vortex Beammentioning

confidence: 58%

“…By combining the electric dipole radiation and the Richards-Wolf vectorial diffraction theory, [4]. the required input field at the pupil plane of the high NA objective lens for generating arbitrary three dimensionally linear and elliptical polarization at the focal point with an optimal spot size can be found analytically by solving the inverse problem [7].…”

Section: Arbitary 3d Polarization At Focusmentioning

confidence: 99%

See 1 more Smart Citation

Tailoring optical focal field through laser beam polarization engineering

Chen

Yang

Zhan

2009

2009 Conference on Lasers &Amp; Electro Optics &Amp; The Pacific Rim Conference on Lasers and Electro-Optics

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Flattop Focusing With Vectorial Vortex Beammentioning

confidence: 58%

Section: Arbitary 3d Polarization At Focusmentioning

confidence: 99%

Tailoring optical focal field through laser beam polarization engineering

Chen

Yang

Zhan

2009

2009 Conference on Lasers &Amp; Electro Optics &Amp; The Pacific Rim Conference on Lasers and Electro-Optics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Focus shaping with vortex and elliptically symmetric polarized beams were studied numerically and experimentally. [8][9][10][11] For circularly polarized vortex beam, proper combination of vortex topological charge and handedness of circular polarization will generate focused field with flattop and strong longitudinal component. 8,9 And elliptical symmetry of linear polarization states provides an additional degree of freedom in focus shaping to meet specific applications.…”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11] For circularly polarized vortex beam, proper combination of vortex topological charge and handedness of circular polarization will generate focused field with flattop and strong longitudinal component. 8,9 And elliptical symmetry of linear polarization states provides an additional degree of freedom in focus shaping to meet specific applications. 10,11 Low numerical aperture (NA) element, such as axicon or axicon polarizer, [12][13][14] has been used to create radially or azimuthally polarized non-diffracting fields.…”

Section: Introductionmentioning

confidence: 99%

Chapter 4: Comprehensive Focal Field Engineering With Vectorial Optical Fields

Chen¹,

Zhan²

2013

Vectorial Optical Fields

Self Cite

View full text Add to dashboard Cite

The propagation and focusing properties of spatially variant polarization remain of continued research interest owing to their promising applications in physics, chemistry and biological sciences. The main challenges to these applications are the optimization of focus shape, size and the control of polarization distribution within the focal volume. In this chapter, systematic approaches that are suitable for comprehensive three-dimensional focal field engineering are reviewed. Threedimensional flattop focusing with extended depth of focus and optical bubble is illustrated through the use of generalized cylindrical vector beam illumination and diffractive optical element (DOE). Combining the radiation pattern from an electric dipole and the Richards-Wolf vectorial diffraction method, the required input field at the pupil plane of a high numerical aperture objective lens for generating arbitrary threedimensional polarization at the focal point with an optimal spot size can be found analytically by solving an inverse problem. Diffraction-limited spherical spots with three-dimensionally controllable polarization can be realized through applying this radiation reversal approach to 4-π microscopy. Several other exotic optical focal field distributions, such as high purity longitudinally polarized optical needle field with extended depth of focus, extremely long optical tube and uniform optical chain, are demonstrated through the reversal of the radiation pattern from linear electric and magnetic dipole arrays. Vectorial Optical Fields Downloaded from www.worldscientific.com by UNIVERSITY OF BIRMINGHAM LIBRARY -INFORMATION SERVICES on 03/21/15. For personal use only. 126 W. Chen and Q. Zhan

show abstract

“…In an experiment, the formed optical vortex has to be separated from 0 th order beam for measurements. The 0 th order beam still carries the component of the plane wave and it is much stronger (Yang, 2009). …”

mentioning

confidence: 99%