Spin Hall Effect of Light in a Random Medium

Bardon-brun, Tamara; Delande, Dominique; Cherroret, Nicolas

doi:10.1103/physrevlett.123.043901

Cited by 34 publications

(28 citation statements)

References 43 publications

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“…In recent years, various resonant mechanisms have been proposed to enhance the photonic SHE which include surface plasmon resonance (SPR) 7 , long range SPR excitation 8 , photon tunneling 9 , resonant optical tunneling effect (ROTE) 10 , frustrating total internal reflection (FTIR) 11 , bound states in the continuum (BICs) 12 , graphene/MoS 2 heterostructures 13 , waveguide 14 , etc. On the other hand, a variety of unconventional materials have also been proposed to enhance the photonic SHE, including epsilon-near-zero (ENZ) materials 15 , anisotropic ENZ 16 , hyperbolic metamaterials 17 , 18 , anisotropic metamaterials 19 , graphene 20 – 22 and black phosphorus 23 , polymers 24 , topological insulators 25 , and even transversally disordered media 26 which present great difference from the other photonic SHE materials, for example, they naturally display spin-dependent shifts of larger magnitude which is proportional to the transverse wavelength rather than the wavelength itself. However, most of the examples mentioned above are only theoretical studies.…”

Section: Introductionmentioning

confidence: 99%

Limitations of the transmitted photonic spin Hall effect through layered structure

Miao

Wang

Herrmann

et al. 2021

Sci Rep

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In this paper, we show theoretically that the spin-dependent transverse shift of the transmitted photonic spin Hall effect (SHE) through layered structure cannot exceed half of the incident beam waist. Exact conditions for obtaining the upper limit of the transmitted SHE are clarified in detail. In addition, different from the popular view in many investigations, we find that there is no positive correlation between the spin-dependent transverse displacement and the ratio between the Fresnel transmission coefficients (tp, ts). In contrast, the optimal transmission ratio is determined by the incident angle and the beam waist. Moreover, two conventional transmission structures are selected and studied in detail. The characteristics of the transverse displacements obtained are in very good agreement with our theoretical conclusions. These findings provide a deeper insight into the photonic spin Hall phenomena and offer a guide for future related research.

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Section: Introductionmentioning

confidence: 99%

Limitations of the transmitted photonic spin Hall effect through layered structure

Miao

Wang

Herrmann

et al. 2021

Sci Rep

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“…The optical spin Hall effect (OSHE), a phenomenon originally demonstrated by the spin-dependent transverse shifts of light reflected or refracted by a plane interface, has attracted enormous interest and evoked many pioneering studies [1][2][3][4][5][6] since it was proposed by Onoda as an analogy to the electron spin Hall effect [7]. Inherently, the OSHE is a manifestation of the geometric phase in light propagation [8,9], which is originated from the spin-orbit interactions (SOIs) of light [1,3] and has provided a novel route for the spin-dependent manipulation of light field, such as generalized refraction [1], holography with metasurfaces [10][11][12], and creation of specific beams or fields [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Optical Spin Hall Effect in Closed Elliptical Plasmonic Nanoslit with Noncircular Symmetry

et al. 2021

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We investigated the optical spin Hall effect (OSHE) of the light field from a closed elliptical metallic curvilinear nanoslit instead of the usual truncated curvilinear nanoslit. By making use of the characteristic bright spots in the light field formed by the noncircular symmetry of the elliptical slit and by introducing a method to separate the incident spin component (ISC) and converted spin component (CSC) of the output field, the OSHE manifested in the spot shifts in the CSC was more clearly observable and easily measurable. The slope of the elliptical slit, which was inverse along the principal axes, provided a geometric phase gradient to yield the opposite shifts of the characteristic spots in centrosymmetry, with a double shift achieved between the spots. Regarding the mechanism of this phenomenon, the flip of the spin angular momentum (SAM) of CSC gave rise to an extrinsic orbital angular momentum corresponding to the shifts of the wavelet profiles of slit elements in the same rotational direction to satisfy the conservation law. The analytical calculation and simulation of finite-difference time domain were performed for both the slit element and the whole slit ellipse, and the evolutions of the spot shifts as well as the underlying OSHE with the parameters of the ellipse were achieved. Experimental demonstrations were conducted and had consistent results. This study could be of great significance for subjects related to the applications of the OSHE.

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“…It is known that -in contrast to atomic gases -light propagating in inhomogeneous media is naturally subject to an intrinsic spin-orbit interaction, which is predicted by Maxwell theory [37,38]. Such a mechanism has been observed in a number of optical configurations involving light transmitted or reflected at dielectric interfaces [39], plasmonic slits [40], nonparaxial beams [41], or light propagating in random media [42,43]. In the context of fluids of light, signatures of an analogue spin Hall effect were reported in microcavity exciton-polaritons [44].…”

Section: Introductionmentioning

confidence: 99%

Spin-orbit-coupled fluids of light in bulk nonlinear media

Martone,

Bienaimé,

Cherroret

2021

Preprint

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We show that nonparaxial polarized light beams propagating in a bulk nonlinear Kerr medium naturally exhibit a coupling between the motional and the polarization degrees of freedom, realizing a spin-orbit-coupled mixture of fluids of light. We investigate the impact of this mechanism on the Bogoliubov modes of the fluid, using a suitable density-phase formalism built upon a linearization of the exact Helmholtz equation. The Bogoliubov spectrum is found to be anisotropic, and features both low-frequency gapless branches and high-frequency gapped ones. We compute the amplitudes of these modes and propose a couple of experimental protocols to study their excitation mechanisms. This allows us to highlight a phenomenon of hybridization between density and spin modes, which is absent in the paraxial description and represents a typical fingerprint of spin-orbit coupling.

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Spin Hall Effect of Light in a Random Medium

Cited by 34 publications

References 43 publications

Limitations of the transmitted photonic spin Hall effect through layered structure

Limitations of the transmitted photonic spin Hall effect through layered structure

Optical Spin Hall Effect in Closed Elliptical Plasmonic Nanoslit with Noncircular Symmetry

Spin-orbit-coupled fluids of light in bulk nonlinear media

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