Efficient extracavity generation of radially and azimuthally polarized beams

Machavariani, G.; Lumer, Yaakov; Moshe, Inon; Meir, Avi; Jäckel, S.

doi:10.1364/ol.32.001468

Cited by 255 publications

(96 citation statements)

References 15 publications

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“…The simplest approach is based on a Mach-Zehnder interferometer [90,91]. Phase masks and diffractive phase elements can also be used for better conversion efficiency [92][93][94]. Special polarization converters can achieve > 99% mode purity [27,95].…”

Section: Discussionmentioning

confidence: 99%

Direct Electron Acceleration with Radially Polarized Laser Beams

et al. 2013

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In the past years, there has been a growing interest in innovative applications of radially polarized laser beams. Among them, the particular field of laser-driven electron acceleration has received much attention. Recent developments in high-power infrared laser sources at the INRS Advanced Laser Light Source (Varennes, Qc, Canada) allowed the experimental observation of a quasi-monoenergetic 23-keV electron beam produced by a radially polarized laser pulse tightly focused into a low density gas. Theoretical analyses suggest that the production of collimated attosecond electron pulses is within reach of the actual technology. Such an ultrashort electron pulse source would be a unique tool for fundamental and applied research. In this paper, we propose an overview of this emerging topic and expose some of the challenges to meet in the future.

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Section: Discussionmentioning

confidence: 99%

Direct Electron Acceleration with Radially Polarized Laser Beams

et al. 2013

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“…Also liquid crystals have been used for the polarization conversion of optical waves as described e.g. in [8]- [11]. Here, we consider yet another approach, namely the use of light propagation in hollow metallic waveguides.…”

Section: Contextmentioning

confidence: 99%

Hollow waveguides as polarization converting elements: a theoretical study

Helfert

Edelmann

Jahns

2015

J. Eur. Opt. Soc.-Rapid Publ.

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Subwavelength apertures in a metallic film act as hollow waveguides. By using a non-quadratic cross-section, an anisotropic transmission behaviour results for the two polarization states. Thus, an array of metallic subwavelength apertures may be used as polarization converter, e.g., as a half-wave plate. By varying orientation and shape of the cross-sections locally, one can design polarization shifting elements for complex wave fields. Here, we present a theoretical consideration on the physical properties and compare with dielectric form birefringence.

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“…By contrast, the extracavity method (which refers to two types of techniques), achieves radially and azimuthally polarized beams outside of the laser cavity. The first type of technique uses a cut half-wave plate, polarization converter, or liquid-crystal spatial light modulator to convert a linearly or circularly polarized beam into a radially or azimuthally polarized beam [9,10]. The second type of technique uses various interferometric structures to obtain a radially or azimuthally polarized beam [11,12].…”

Section: Introductionmentioning

confidence: 99%

Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters

et al. 2016

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This paper proposes a modified polarization converter for generating radially and azimuthally polarized beams. Based on a Mach-Zehnder-like interferometric structure, the device consists of a pair of lateral displacement beamsplitters (LDBs) and two half-wave plates that manipulate the states of polarization of incident linearly polarized light. Through the coherent superposition of two orthogonal Hermite-Gaussian modes in the far field, radially and azimuthally polarized beams can be obtained simultaneously. A prototype was assembled to demonstrate the feasibility of the design. The proposed design has the advantage of having a simple, symmetric, compact, and robust structure. In addition, the introduction of LDBs substantially reduces the cost of this device. Moreover, the design can be applied to a broadband pulsed laser with considerable potential in high-power applications.

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Efficient extracavity generation of radially and azimuthally polarized beams

Cited by 255 publications

References 15 publications

Direct Electron Acceleration with Radially Polarized Laser Beams

Direct Electron Acceleration with Radially Polarized Laser Beams

Hollow waveguides as polarization converting elements: a theoretical study

Generating Radially and Azimuthally Polarized Beams by Using a Pair of Lateral Displacement Beamsplitters

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