A method of measurement of polarized light ellipticity only

Asselborn, S. A.; Кундикова, Н. Д.; Novikov, I. V.

doi:10.1117/12.666817

Cited by 4 publications

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“…To carry out experimental investigation we used a multimode optical fiber with the following parameters: fiber core radius ρ = 0.1 mm, core refractive index n co = 1.458, cladding refractive index n cl = 1.441, wavelength of laser λ = 532 nm. In order to determine the angle of the speckle pattern rotation with high accuracy, we used the method based on the optical phase conjugation of the radiation transmitted through an optical fiber [14,15]. The phase conjugation of circular polarized light transmitted through a multimode optical fiber allows inverting light propagation and obtaining a narrow light beam at the other fiber end.…”

Section: Rytov [3] Vladimirmentioning

confidence: 99%

Optical fiber parameters effect on light propagation in a coiled multimode fiber

2019

ZJPAS

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Section: Rytov [3] Vladimirmentioning

confidence: 99%

Optical fiber parameters effect on light propagation in a coiled multimode fiber

2019

ZJPAS

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“…To increase the accuracy of the measurements, we used a method based on the wavefront conjugation [47,48]. We have found that the optical Magnus effect decreases in a negative helix and increases in a positive helix.…”

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“…Figure 2 shows that the distance between two beams increases along with the increase of the helix pitch, or solid angle Ω, subtended by one helix coil. To determine the angle of the speckle pattern rotation, we measured distance between the observed beams centroid and the distance between the fiber end and the CCD camera [47,48]. In Figure 2, the distances between beams correspond to the angles of rotation ϕ = 3.61…”

mentioning

confidence: 99%

“…In order to determine the angle of the speckle-pattern rotation with high accuracy, we used the method based on the optical phase conjugation of the radiation transmitted through an optical fiber [47,48]. The phase conjugation of circular polarized light transmitted through a multimode optical fiber allows to invert light propagation and obtain a narrow light beam at the other fiber end.…”

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confidence: 99%

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Joint effect of polarization and the propagation path of a light beam on its intrinsic structure

Abdulkareem¹,

Кундикова²

2016

Opt. Express

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The well-known effects of the spin-orbit interaction of light are manifestations of pair mutual influence of the three types of the angular momentum of light, namely, the spin angular momentum, the extrinsic orbital angular momentum and the intrinsic orbital angular momentum. Here we propose the convenient classification of the effects of the spin-orbit interaction of light and we observe one of the new effects in the frame of this classification, which is determined by the joint influence of two types of the angular momentum on the third type of the angular momentum, namely, the influence of the spin angular momentum and the extrinsic orbital angular momentum on the intrinsic orbital angular momentum. We experimentally studied the propagation of circularly polarized light through an optical fiber coiled into a helix. We have found that the spin angular momentum and the helix parameters affect the spatial structure of the radiation transmitted through the optical fiber. We found out that the structure of the light field rotates when changing the sign of circular polarization. The angle of rotation depends on the parameters of the helix. The results can be used to develop the general theory of spinning particles and can find application in metrology methods and nanooptics devices. Structured light beams carry three types of angular momentum [1][2][3][4]. The spin angular momentum is associated with polarization, the extrinsic orbital angular momentum is determined by the propagation path of the light beam, and the intrinsic orbital angular momentum is determined by the structure of the light field of the beam [3]. The effect of one of the angular momenta on another angular momentum leads to the spin-orbit interaction of light (a photon) [5,6]. There are six variants of such effects.The spin angular momentum affects the extrinsic orbital angular momentum, the effect can be observed as the longitudinal shift of the centroid of a linearly polarized light beam and the transverse shift of the centroid of a circularly polarized light beam at reflection and refraction and in focused light beams. These shifts are known as the Goos-Hanchen shift [7], the Imbert-Fedorov shift [8][9][10], the Hall effect for light [11], the optical Magnus effect [12] and the shift of the beam waist [13][14][15].The extrinsic orbital angular momentum affects the spin angular momentum, the effect manifests itself as the rotation of the linear polarization of light when changing * kundikovand@susu.ru the light propagation path [16][17][18][19]. The effect is known as the Rytov-Vladimirski-Berry-Chao-Wu-Tomita geometric polarization rotation. It can be observed in a single mode fiber, coiled into a helix [20], or in a multimode optical fiber [21].The intrinsic orbital angular momentum affects the extrinsic orbital angular momentum, the effect manifests itself as the shift of the centroid of a vortex light beam under reflection and refraction [3,[22][23][24].The extrinsic orbital angular momentum affects the intrinsic orbital angular momentum, t...

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Coherent Light at the Interface Between Two Media

Кундикова

2016

Russ Phys J

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Reflection and refraction of coherent polarized radiation at the interface between two media are considered. It is shown that deviations from the well-known laws of geometrical optics are possible under certain conditions. The causes of such a deviation are considered.Keywords: Goos-Hänchen shift, optical Magnus effect, spin and orbital angular momenta, spin-orbit interaction of a photon, optical Hall effect.

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A method of measurement of polarized light ellipticity only

Cited by 4 publications

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Optical fiber parameters effect on light propagation in a coiled multimode fiber

Optical fiber parameters effect on light propagation in a coiled multimode fiber

Joint effect of polarization and the propagation path of a light beam on its intrinsic structure

Coherent Light at the Interface Between Two Media

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