Journal ArticleDOI
Imaging using cylindrical vector beams in a high-numerical-aperture microscopy system.
TLDR
It is shown that an azimuthal vortex beam provides good images for a variety of object structures and pinhole sizes, and plays an important role in high-numerical-aperture optical imaging.Abstract:
Imaging of object structures using cylindrical vector beams in an aplanatic solid immersion lens (SIL) microscope is investigated. Based on a complete optical model of an aplanatic SIL microscope, images of some object structures using radial polarization, azimuthal polarization, and azimuthal vortex beams are simulated. Some interesting imaging effects of these object structures are observed. For example, counterintuitively, it is found that, compared to linear and circular polarizations, radial polarization requires a larger pinhole to acquire a good image and resolution. Similarly, it is shown that an azimuthal vortex beam provides good images for a variety of object structures and pinhole sizes. Theories and explanations are provided to justify the observed effects. The presented results play an important role in high-numerical-aperture optical imaging.read more
Citations
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Journal ArticleDOI
Controlled generation of higher-order Poincaré sphere beams from a laser
Darryl Naidoo,Filippus S. Roux,Filippus S. Roux,Angela Dudley,Angela Dudley,Igor A. Litvin,Bruno Piccirillo,Lorenzo Marrucci,Andrew Forbes +8 more
TL;DR: In this paper, the angular momentum of light can be described by positions on a higher-order Poincare sphere, where superpositions of spin and orbital angular momentum states give rise to laser beams that have many applications.
Journal ArticleDOI
A review of complex vector light fields and their applications
TL;DR: In this article, the fundamental concepts of vector beams, summarise the various approaches to control them in the laboratory, and give a concise overview of the many applications they have spurned.
Journal ArticleDOI
Polarization-controlled directional scattering for nanoscopic position sensing.
Martin Neugebauer,Paweł Woźniak,Paweł Woźniak,Ankan Bag,Ankan Bag,Gerd Leuchs,Gerd Leuchs,Gerd Leuchs,Peter Banzer,Peter Banzer,Peter Banzer +10 more
TL;DR: For controlled excitation of a spherical silicon nanoantenna, this work uses tightly focused radially polarized light to achieve strong lateral directionality and demonstrates in a proof-of-concept experiment that a lateral resolution in the Ångström regime can be achieved.
Journal ArticleDOI
Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters.
Jun Liu,Shimao Li,Long Zhu,Andong Wang,Shi Chen,Charalambos Klitis,Cheng Du,Qi Mo,Marc Sorel,Siyuan Yu,Xinlun Cai,Jian Wang +11 more
TL;DR: This work proposes and demonstrates direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters through a 2-km large-core fiber, showing low-level mode crosstalk and favorable link performance.
Journal ArticleDOI
Q-plate technology: a progress review [Invited]
TL;DR: A bird’s-eye view of the progress of this technology in recent years is presented and some educated guesses on the most likely future developments are offered.
References
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Journal ArticleDOI
Cylindrical vector beams: from mathematical concepts to applications
TL;DR: An overview of the recent developments in the field of cylindrical vector beams is provided in this paper, where the authors also discuss the potential of using these beams in other fields.
Journal ArticleDOI
Sharper Focus for a Radially Polarized Light Beam
TL;DR: It is experimentally demonstrate for the first time that a radially polarized field can be focused to a spot size significantly smaller than for linear polarization.
Journal ArticleDOI
Focusing of high numerical aperture cylindrical-vector beams.
TL;DR: It is shown that, in the particular case of a tightly focused, radially polarized beam, the polarization shows large inhomogeneities in the focal region, while the azimuthally polarized beam is purely transverse even at very high numerical apertures.
Journal ArticleDOI
Focusing light to a tighter spot
TL;DR: In this article, a novel radially polarized instead of a linearly polarized light annulus was proposed to reduce the focal area of a high aperture lens, which achieved an even smaller focal area, which is determined by the contour of the intensity distribution at half the maximum value.
Journal ArticleDOI
Solid immersion microscope
S. M. Mansfield,Gordon S. Kino +1 more
TL;DR: In this article, a real-time optical microscope was developed that operates on the same principle as a liquid immersion microscope, with the liquid replaced by a solid lens of high refractive index material.