Noncentrosymmetric far-zone spectral density induced by light scattering with random media having parity-time symmetry

Zhang, Xuan; Liu, Yonglei; Chen, Yuntian; Wang, Fei; Cai, Yangjian

doi:10.1103/physreva.105.023510

Cited by 6 publications

(2 citation statements)

References 70 publications

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“…A few papers have been published exploring the role of second-order classical coherence in non-Hermitian systems [20][21][22][23][24][25][26][27][28][29]. So far, only scattering and paraxial beam propagation have been considered and the role of spatial coherence in non-Hermitian system was explored.…”

Section: Introductionmentioning

confidence: 99%

Degree of polarization in dissipative optical systems

Cirino,

Brandão

2024

J. Opt.

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The polarization matrix formalism is employed to analyze the polarization properties of transmitted narrowband light through several optical setups involving active and dissipative structures. It is demonstrated that the degree of polarization of the output light can increase after propagation in a active/dissipative periodic media. Furthermore, the impact of introducing optical elements like polarizers, compensators, and rotators is examined, and their collective effect on the degree of polarization is discussed.

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Section: Introductionmentioning

confidence: 99%

Degree of polarization in dissipative optical systems

Cirino,

Brandão

2024

J. Opt.

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“…The detailed analysis on the light scattering from the random PT-symmetric particulate collections has been given by the same authors [66]. However, all these studies were confined to cases in which the incident field is scalar [65][66][67]. The effect of partially coherent vector beam on the light scattering with PT-symmetric scatterer has not yet been addressed.…”

Section: Introductionmentioning

confidence: 99%

Scattering of Partially Coherent Vector Beams by a Deterministic Medium Having Parity-Time Symmetry

et al. 2022

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We study the scattering properties of the partially coherent vector beams with the deterministic media having the classic symmetric and parity-time (PT) symmetric scattering potential functions. The closed-form expressions for the intensity and polarization matrix of the far-zone scattered field are obtained, under first-order Born approximation, when the partially coherent vector beams are taken to be radially polarized and the deterministic media are assumed as the four-point scatterers. We demonstrate both analytically and numerically that the far-zone scattered field becomes noncentrosymmetric and the directionality appears in the scattering pattern when the scattering potential function is switched from classic symmetry to PT symmetry. We show the effect of spatial coherence of the incident partially coherent vector beam on the directionality in scattering. We find that by turning the symmetry property of the spatial coherence function of the incident beam, i.e., into PT symmetry, the directionality in the far-zone scattering can be suppressed or enhanced, depending on the joint effect from the symmetry of the scattering potential and the symmetry of the spatial coherence. Our findings may be useful in the application of dynamic control of the directionality in light scattering.

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Propagation of partially coherent light in non-Hermitian lattices

Brandão

Rocha

2022

Phys. Rev. A

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Noncentrosymmetric far-zone spectral density induced by light scattering with random media having parity-time symmetry

Cited by 6 publications

References 70 publications

Degree of polarization in dissipative optical systems

Degree of polarization in dissipative optical systems

Scattering of Partially Coherent Vector Beams by a Deterministic Medium Having Parity-Time Symmetry

Propagation of partially coherent light in non-Hermitian lattices

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