Elementary heterogeneously polarized field modeling

Mokhun, Igor I.; Galushko, Yu.; Kharitonova, Ye.; Viktorovskaya, Yu.; Khrobatin, R.

doi:10.1364/ol.36.002137

Cited by 9 publications

(9 citation statements)

References 16 publications

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“…However, in the case of plane waves the appearance of single C-points is impossible. The additional condition must be satisfied-at least, one of the superposing beams must have some intensity gradient [20].…”

Section: Measurement Of the Poynting Vector Components Of Heterogeneomentioning

confidence: 99%

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Experimental analysis of the Poynting vector characteristics

et al. 2012

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Section: Measurement Of the Poynting Vector Components Of Heterogeneomentioning

confidence: 99%

“…Five C-points are indicated in this figure. The characteristics of Cpoints and their location were obtained as it is presented in [20] and due to the analysis of Stokes polarimetry data.…”

Section: Measurement Of the Poynting Vector Components Of Heterogeneomentioning

confidence: 99%

Experimental analysis of the Poynting vector characteristics

et al. 2012

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“…But these relations are even more direct: as is seen from the definition, a C-point with, e.g., perfect right polarization, is thus an isolated zero of amplitude and, therefore, an OV in the field of the leftpolarized component, and vice versa. This close similarity between the phase and polarization singularities can be used for a purposeful creation of the latter ones [131].…”

Section: Generation Of Polarization Singularities On the Base Of Two-...mentioning

confidence: 79%

Opto-Electronics Review

Angelsky,

Bekshaev,

Mokhun

et al. 2022

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The review exposes basic concepts and manifestations of the singular and structured light fields. The presentation is based on deep intrinsic relations between the singularities and the rotational phenomena in light; it involves essentially the dynamical aspects of light fields and their interactions with matter. Due to their topological nature, the singularities of each separate parameter (phase, polarization, energy flow, etc.) form coherent interrelated systems (singular networks), and the meaningful interconnections between the different singular networks are analysed. The main features of singular-light structures are introduced via generic examples of the optical vortex and circular vortex beams. The review describes approaches for generation and diagnostics of different singular networks and underlines the role of singularities in formation of optical field structures. The mechanical action of structured light fields on material objects is discussed on the base of the spin-orbital (canonical) decomposition of electromagnetic momentum, expressing the special roles of the spin (polarization) and spatial degrees of freedom. Experimental demonstrations spectacularly characterize the topological nature and the immanent rotational features of the light-field singularities. The review is based on the results obtained by its authors with a special attention to relevant works of other researchers.

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“…In the case of electromagnetic fields, remarkable achievements in the study of singularities and their applications are presented in numerous publications (see, e.g., refs. [1][2][3][4][5][6][7][8][9][10] and references therein).…”

Section: Introductionmentioning

confidence: 99%

The Poynting Vector Field Singularities: Effects of Symmetry and Its Violation

Tribelsky

2023

Laser & Photonics Reviews

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The phenomenological theory revealing the generic effects of the problem symmetry, its violation, and energy conservation law on the singularities of the Poynting vector field is presented. The bifurcation scenario of formation (annihilation) of the singularities under variations of the problem parameters is elucidated. The results describe the singularities in scattering a linearly polarized plane electromagnetic wave. However, they are valid for any configuration of the incident beam at its scattering by a subwavelength particle. The author shows that topological changes in the pattern of the Poynting vector field occur through a finite number of pitchfork bifurcations. It means that the patterns are topologically stable under variations of the problem parameter(s) that lie between the bifurcation values. The latter ensures that the discussed topological properties of the problem are robust to weak symmetry violation, which is inevitable in any actual experiment. The general consideration is illustrated by a detailed study of singularities in scattering by an infinite right circular germanium cylinder. The results open the possibility of fitting and controlling radiation patterns on subwavelength scales important for various nanotechnologies.

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Elementary heterogeneously polarized field modeling

Cited by 9 publications

References 16 publications

Experimental analysis of the Poynting vector characteristics

Experimental analysis of the Poynting vector characteristics

Opto-Electronics Review

The Poynting Vector Field Singularities: Effects of Symmetry and Its Violation

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