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Advances in Optical Technologies
Table of Contents
Special Issues
Advances in Optical Technologies
/
2013
/
Article
/
Tab 2
/
Research Article
Minimizing the Bright/Shadow Focal Spot Size with Controlled Side-Lobe Increase in High-Numerical-Aperture Focusing Systems
Table 2
Results of numerical simulation for the radially polarized beam with a first-order phase vortex (
).
Transmission function,
Transverse intensity in the focus,
(total and
-component)
Transverse intensity profile: total (solid line) and
-component (dashed line)
FWHM
z
= 0.352
λ
,
FWHM
z
= 0.3
λ
,
,
FWHM
z
= 0.308
λ
,
,
FWHM
z
= 0.28
λ
, FWHM
z
= 0.28
λ