Adjustable half-wave plate

Darsht, M. Ya.; Goltser, I. V.; Кундикова, Н. Д.; Zel'dovich, Boris Ya

doi:10.1364/ao.34.003658

Cited by 18 publications

(10 citation statements)

References 6 publications

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“…The amplitude change will behave out-of-phase, if the lights have orthogonal polarizations, which is measured by an OSA. For a λ/2 waveplate, if the waveplate is rotated by ψ, it is equivalent to rotate the polarization axis of a linear polarized light passing through it by 2ψ [46]. As depicted in Fig.…”

Section: Microwave To Optical Conversionmentioning

confidence: 99%

Waveguide cavity optomagnonics for microwave-to-optics conversion

Zhu

Zhang

Han

et al. 2020

Optica

113

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Cavity optomagnonics has emerged as a promising platform for studying coherent photon-spin interactions as well as tunable microwave-to-optical conversion. However, current implementation of cavity optomagnonics in ferrimagnetic crystals remains orders of magnitude larger in volume than state-of-the-art cavity optomechanical devices, resulting in very limited magnetooptical interaction strength. Here, we demonstrate a cavity optomagnonic device based on integrated waveguides and its application for microwave-to-optical conversion. By designing a ferrimagnetic rib waveguide to support multiple magnon modes with maximal mode overlap to the optical field, we realize a high magneto-optical cooperativity which is three orders of magnitude higher compared to previous records obtained on polished YIG spheres. Furthermore, we achieve tunable conversion of microwave photons at around 8.45 GHz to 1550 nm light with a broad conversion bandwidth as large as 16.1 MHz. The unique features of the system point to novel applications at the crossroad between quantum optics and magnonics.

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Section: Microwave To Optical Conversionmentioning

confidence: 99%

Waveguide cavity optomagnonics for microwave-to-optics conversion

Zhu

Zhang

Han

et al. 2020

Optica

113

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“…Kondisi di atas berlaku untuk berkas cahaya yang datang sejajar normal keping. Tetapi bila berkas cahaya mengenai keping λ/4 dengan membentuk sudut datang θ = 0 • maka di dalam keping terjadi pemantulan berulang sehingga selain tebal keping efektif (d) berubah juga akan terjadi pembiasan ganda [3,10]. Akibatnya juga akan mengubah besarnya retardasi keping gelombang, seperti ditunjukkan Gambar 3.…”

Section: Hasil Dan Pembahasanunclassified

Metode rasio sisa cahaya terpolarisasi lingkaran untuk menentukan fase retarder

Yudoyono

Rohedi

2005

JFA

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Telah dilakukan perhitungan retardasi retarder melalui pengukuran rasio sisa cahaya terpolarisasi lingkaran. Pada penelitian ini digunakan keping seperempat gelombang sebagai retarder uji. Setup peralatan menggunakan konstruksi polariskop lingkaran dengan keping gelombang pertama sebagai retarder uji. Perhitungan retardasi retarder berdasar pada vektor Stoke dan matriks Muller dari komponen optis yang digunakan. Retarder uji diputar untuk mendapatkan variasi retardasi retarder sebagai fungsi sudut datang. Hasil eksperimen menunjukkan bahwa retardasi retarder uji besarnya berubah terhadap sudut datang dan dapat difungsikan sebagai keping seperempat gelombang bila sudut datang berkas cahaya tidak lebih dari 20 • .

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“…Such transformation can be observed in anisotropic inhomogeneous medium [29,34], in fibers [28], in focused beams [30,32] and under light scattering [31,32].…”

mentioning

confidence: 97%

“…Interaction of the spin angular momentum with the intrinsic orbital angular momentum manifests itself as the transformation of the circular polarized beam of zero vorticity into the linearly polarized beam of non-zero vorticity [28][29][30][31][32][33][34]. Such transformation can be observed in anisotropic inhomogeneous medium [29,34], in fibers [28], in focused beams [30,32] and under light scattering [31,32].…”

mentioning

confidence: 99%

“…In such a fiber, the light field inside the fiber is a superposition of modes J |l| (r) exp (ilϕ), where r, ϕ are the polar coordinates, J |l| (r) is the Bessel function, l is a topological charge or an orbital angular momentum, −l max ≤ l ≤ l max , l max = (2πρ/λ) √ 2n co δn, ρ is the radius of the fiber core , λ is a wavelength, δn = n co − n cl is the difference in the refractive indices of the core n co and cladding n cl . One can neglect the modes with l = 0, ±1 in a multimode optical fiber, and then circularly polarized field E σ (r, ϕ, z) inside the fiber is kept constant and has the following form [28,49]:…”

mentioning

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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Adjustable half-wave plate

Abstract: An adjustable construction of a half-wave plate is described. The device consists of three birefringent plates with arbitrary thicknesses. Owing to the variable angles between the optical axes of these plates, it could be easily adjusted to a different wavelength of laser radiation.

Cited by 18 publications

References 6 publications

Waveguide cavity optomagnonics for microwave-to-optics conversion

Waveguide cavity optomagnonics for microwave-to-optics conversion

Metode rasio sisa cahaya terpolarisasi lingkaran untuk menentukan fase retarder

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

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