Efficient generation of nearly diffraction-free beams using an axicon

Scott, Graeme; McArdle, Neil

doi:10.1117/12.60017

Cited by 187 publications

(58 citation statements)

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“…Most of existing works in the literature are mainly focused on the generation of Bessel beams in the optical regime, through the adoption of annular slit, axicons, or lasing devices [5][6][7][8][9], while much less results exist in the microwave regime.…”

Section: Waveguide-based Microwave Bessel Beam Launchermentioning

confidence: 99%

Localized Bessel Beams: Basic Properties and Emerging Communication Applications

Costanzo¹

2017

Wave Propagation Concepts for Near-Future Telecommunication Systems

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Section: Waveguide-based Microwave Bessel Beam Launchermentioning

confidence: 99%

Localized Bessel Beams: Basic Properties and Emerging Communication Applications

Costanzo¹

2017

Wave Propagation Concepts for Near-Future Telecommunication Systems

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“…At the focal point, the annular beam changes its beam shape into the nearly non-diffractive beam, of which spot size is less than 4μm diameter . (Belanger & Rioux, 1978;Durnin & Miceli, 1987;Indebetouw, 1989;Scott & McArdle, 1992;Arrimoto et al, 1992;Doskolovich et al, 1993;Kono, 1995Kono, & 1996Soifer et al, 1997) The beam then passes though the FSA without any obstruction. The annular beam finally goes to the telescope.…”

Section: Apparatusmentioning

confidence: 99%

In-line Typed High-Precision Polarization Lidar for Disaster Prevention

Shiina¹

2010

Advances in Solid State Lasers Development and Applications

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“…The control of the wavefront structure can be nowadays based on a quite varied toolbox of methods, ranging from the simplest refractive lenses to the complex "transformation optics" associated, for example, with metamaterial cloaking 7,8 . Associated optical devices include refractive optical elements, such as for instance, axicon lenses 9 ; diffractive optical elements, such as computer-generated holograms displayed on spatial light modulators 10 ; plasmonic or dielectric metasurfaces [11][12][13][14] ; and finally PancharatnamBerry phase optical elements (PBOEs), which have recently stimulated a growing interest [15][16][17] and which are the subject of the present paper.…”

Section: Introductionmentioning

confidence: 99%

Flat polarization-controlled cylindrical lens based on the Pancharatnam–Berry geometric phase

et al. 2017

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The working principle of ordinary refractive lenses can be explained in terms of the space-variant optical phase retardations they introduce, which reshape the optical wavefront curvature and hence affect the subsequent light propagation. These phases, in turn, are due to the varying optical path length seen by light at different transverse positions relative to the lens centre. A similar lensing behavior can however be obtained when the optical phases are introduced by an entirely different mechanism. Here, we consider the "geometric phases" that arise from the polarization transformations occurring in anisotropic optical media, named after Pancharatnam and Berry. The medium anisotropy axis is taken to be space-variant in the transverse plane and the resulting varying geometric phases give rise to the wavefront reshaping and lensing effect, which however depends also on the input polarization. We describe the realization and characterization of a cylindrical geometric-phase lens that is converging for a given input circular polarization state and diverging for the orthogonal one, which provides one of the simplest possible examples of optical element based on geometric phases. The demonstrated lens is flat and only few microns thick (not including the supporting substrates); moreover, its working wavelength can be tuned and the lensing can be switched on and off by the action of an external control electric field. Other kinds of lenses or more general phase elements inducing different wavefront distortions can be obtained by a similar approach. Besides their potential for optoelectronic technology, these devices offer good opportunities for introducing college-level students to an advanced topic of modern physics, such as the Berry phase, with the help of interesting optical demonstrations.

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Efficient generation of nearly diffraction-free beams using an axicon

Cited by 187 publications

References 0 publications

Localized Bessel Beams: Basic Properties and Emerging Communication Applications

Localized Bessel Beams: Basic Properties and Emerging Communication Applications

In-line Typed High-Precision Polarization Lidar for Disaster Prevention

Flat polarization-controlled cylindrical lens based on the Pancharatnam–Berry geometric phase

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