Spin-Orbit Coupling of Laguerre-Gaussian Beams on High-Order Poincar&#233; Sphere in Near Field

Fan Huang; Xinting Jia

doi:10.3788/LOP202259.0726001

Journals >Laser & Optoelectronics Progress >Volume 59 >Issue 7 >Page 0726001 > Article

Laser & Optoelectronics Progress
Vol. 59, Issue 7, 0726001 (2022)

Spin-Orbit Coupling of Laguerre-Gaussian Beams on High-Order Poincaré Sphere in Near Field

Fan Huang and Xinting Jia^*

Author Affiliations

College of Science, Wuhan University of Technology, Wuhan , Hubei 430070, China

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DOI: 10.3788/LOP202259.0726001 Cite this Article Set citation alerts

Fan Huang, Xinting Jia. Spin-Orbit Coupling of Laguerre-Gaussian Beams on High-Order Poincaré Sphere in Near Field[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0726001 Copy Citation Text

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Higher-order Poincaré sphere of the topological charge m=1

Fig. 1. Higher-order Poincaré sphere of the topological charge

m = 1

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Change curves of plane integral ratio between the evanescent wave's intensity and the total-field intensity. (a) w0=0.1λ; (b) z=0.1λ

Fig. 2. Change curves of plane integral ratio between the evanescent wave's intensity and the total-field intensity. (a)

w_{0} = 0.1 λ

; (b)

z = 0.1 λ

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Fig. 3. Intensity distributions for different topological charges. (a) Propagating wave; (b) evanescent wave; (c) total-field

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Fig. 4. Intensity distributions for different ellipticity angles. (a) Propagating wave; (b) evanescent wave; (c) total-field

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Fig. 5. Longitudinal angular momentum density distributions for different freedom degrees. (a)

n = 1, θ = π / 8

; (b)

m = 2, θ = π / 8

; (c)

m = 2, n = 1

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Fig. 6. Longitudinal OAM density distributions for different topological charges. (a)

m = - 1

; (b)

m = 1

; (c)

m = 3

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Fig. 7. Transverse SAM density distributions for different ellipticity angles. (a)

θ = 0

; (b)

θ = π / 8

; (c)

θ = π / 4

Fan Huang, Xinting Jia. Spin-Orbit Coupling of Laguerre-Gaussian Beams on High-Order Poincaré Sphere in Near Field[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0726001

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