Generation of a Lattice of Spin-Orbit Beams via Coherent Averaging

Sarenac, Dusan; Cory, David G.; Nsofini, J.; Hincks, Ian; Miguel, Paulo Augusto Cauchick; Arif, Muhammad; Clark, Charles W.; Huber, M.; Pushin, D. A.

doi:10.1103/physrevlett.121.183602

Cited by 33 publications

(37 citation statements)

References 49 publications

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“…The Talbot Effect has been considered with classical light as well as OAM lattices [31][32][33][34][35]. In this Letter, we report the first demonstration of the Talbot Effect with single photons prepared in a lattice of OAM states.…”

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confidence: 86%

“…Furthermore, self-imaging has potential applications in implementing quantum logic operations * sacha.schwarz@uwaterloo.ca † dmitry.pushin@uwaterloo.ca as qudits may be encoded in the transverse spatial profile of single photons [37,38]. A lattice of spin-orbit states can be obtained by passing circularly polarized light through pairs of birefringent linear gradients whose optical axes are perpendicular to each other [34,39]. Each lattice cell of such a beam approximates the following spin-orbit state:…”

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confidence: 99%

“…This configuration prepares a lattice of spin-orbit states where one of the polarization states is coupled to = 1. Higher values of may be achieved by employing a setup with more LOV prism pairs, while negative values of may be achieved by changing the input polarization state [34].…”

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confidence: 99%

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Talbot effect of orbital angular momentum lattices with single photons

Schwarz

Kapahi

et al. 2020

Phys. Rev. A

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The self-imaging, or Talbot Effect, that occurs with the propagation of periodically structured waves has enabled several unique applications in optical metrology, image processing, data transmission, and matter-wave interferometry. In this work, we report on the first demonstration of a Talbot Effect with single photons prepared in a lattice of orbital angular momentum (OAM) states. We observe that upon propagation, the wavefronts of the single photons manifest self-imaging whereby the OAM lattice intensity profile is recovered. Furthermore, we show that the intensity at fractional Talbot distances is indicative of a periodic helical phase structure corresponding to a lattice of OAM states. This phenomenon is a powerful addition to the toolbox of orbital angular momentum and spin-orbit techniques that have already enabled many recent developments in quantum optics.

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Talbot effect of orbital angular momentum lattices with single photons

Schwarz

Kapahi

et al. 2020

Phys. Rev. A

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“…However, the array beams were widely studied because they can provide higher power output than single beam. The Talbot effect, which describes the periodic beam propagating in studies of self-imaging, was investigated [23,24], and array beams with orbital angular momentum can also be generated based on Talbot effect [25,26]. In free space communication, the properties of coherent array beams propagating in free space and turbulent atmosphere have been widely investigated [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Propagation of Rectangular Multi-Gaussian Schell-Model Array Beams through Free Space and Non-Kolmogorov Turbulence

Liu

Wang

et al. 2020

Applied Sciences

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In this paper, rectangular multi-Gaussian Schell-model (MGSM) array beams, which consists N×D beams in rectangular symmetry, are first introduced. The analytical expressions of MGSM array beams propagating through free space and non-Kolmogorov turbulence are derived. The propagation properties, such as normalized average intensity and effective beam sizes of MGSM array beams are investigated and analyzed. It is found that the propagation properties of MGSM array beams depend on the parameters of the MGSM source and turbulence. It can also be seen that the beam size of Gaussian beams translated by MGSM array beams will become larger as the total number of terms, M, increases or coherence length, σ , decreases, and the beam in stronger non-Kolmogorov turbulence (larger α and l 0 , or smaller L 0 ) will also have a larger beam size.

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“…A variety of methods or devices have been developed to enable the superposition of OAMs. These include liquid crystal q ‐plates, spatial light modulators, crystal prism pairs, microscopic ring resonators, and other optical elements . Moreover, the progress in OAM superposition has brought about many important applications in classical physics and quantum sciences.…”

Section: Introductionmentioning

confidence: 99%

Manipulation for Superposition of Orbital Angular Momentum States in Surface Plasmon Polaritons

Zhang

Zeng

et al. 2019

Advanced Optical Materials

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states can generate structured spatial light fields via the comprehensive manipulations of the helical phase, polarization, and propagation of the light. Intuitively, the equal-weighted superposition of OAM states with TCs of opposite signs may generate spatial modes of petal-like intensity with nonzero or zero global OAMs, and superpositions of higher-order OAMs may produce wheel-like modes with azimuthal variations of intensity in high dimensions. A variety of methods or devices have been developed to enable the superposition of OAMs. These include liquid crystal q-plates, [1][2][3] spatial light modulators, [4,5] crystal prism pairs, [6] microscopic ring resonators, [7,8] and other optical elements. [9][10][11] Moreover, the progress in OAM superposition has brought about many important applications in classical physics and quantum sciences. Classical applications include particle trapping, [12] optical communications, [13,14] and relativistic laser-matter interactions. [15,16] In the quantum field, important advancements have been made in quantum communications, [17][18][19] quantum information processing, [20,21] and quantum calculations. [22,23] The potential to miniaturize superposed spatial modes of OAM to nanoscale is promising for the implementation of integrated on-chip devices. Metasurfaces consisting of monolayers of subwavelength metallic/dielectric structures have become an efficient way to manipulate light at the subwavelength scale. In recent several years, the study of metasurfaces has attracted great interest in areas as phase-controlled, [24] broadband vectorial holograms, [25] broadband achromatic metalenses, [26] and the coherent control of plasmonic spin-Hall effects. [27] The development of metasurfaces for the manipulation of OAM states has also been studied extensively. [28][29][30][31][32][33][34][35] In the past year, significant progress has been made in achieving arbitrarily controlled OAM superposition states via metasurface engineering. Devlin et al. have proposed the metasurface J-plate to realize the superposition of independent OAM states and to convert SAMs into total angular momentum states. [36] Using a reflective plasmonic metasurface, Yue et al. demonstrated various OAM superpositions in multiple channels by changing the polarization of the illumination. [37,38] By designing a nonlinear plasmonic metasurface for the simultaneous control of the OAM and SAM, Li et al. achieved the OAM superposition of the modes of the second Superposition of orbital angular momentum (OAM) states and the structured intensity are providing new approaches for manipulating optical information and light-matter interactions. While superposition of OAMs in free space has been well studied, further extensions to surface plasmon polariton (SPP) confined in near-field would be crucial for miniaturing and integrating platforms. Here, the plasmonic metasurfaces consisting of rotated nanoslits arranged in a segmented spiral are proposed to realize the superposition of two SPP OAM states. The nanoslit rota...

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Generation of a Lattice of Spin-Orbit Beams via Coherent Averaging

Cited by 33 publications

References 49 publications

Talbot effect of orbital angular momentum lattices with single photons

Talbot effect of orbital angular momentum lattices with single photons

Propagation of Rectangular Multi-Gaussian Schell-Model Array Beams through Free Space and Non-Kolmogorov Turbulence

Manipulation for Superposition of Orbital Angular Momentum States in Surface Plasmon Polaritons

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