Gain-Assisted Poynting-Vector Vortices Realized With a Single Lossy Metal Wire

Lee, Hyoung-In; Mok, Jinsik

doi:10.1109/jstqe.2012.2218219

Cited by 4 publications

(6 citation statements)

References 23 publications

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“…Hence, the TM and TE modes correspond, respectively, to the S- and P-polarizations [7]. This annular cylinder of infinitesimally small thickness idealizes a possible active zone of optical gain [20–22]. The current study complements our previous one on the co-rotating TE and TM waves [23].…”

Section: Introductionmentioning

confidence: 67%

“…1. Although we are not concerned with the second set of jump conditions as in [22], there is a more serious argument about the possible electrodynamics within the thin layer in [23]. …”

Section: Resultsmentioning

confidence: 99%

“…Then, J m (n − ρ) is the Bessel function of the first order for the interior, whereas is the Hankel function of first order for the exterior [1–2 22]. Additionally, we redefine the thin-layer position from the viewpoint of such that .…”

Section: Resultsmentioning

confidence: 99%

“…Solely with the two continuity relations and , we arrive at a pair of solutions and to the desired axial fields [22]. Here, the refractive-index ratio N is defined by:…”

Section: Resultsmentioning

confidence: 99%

“…Through provided in Equations 11–13, the trajectories traversed by the PVs are easily expressed in terms of as a function of ρ [22]. First, consider the interior for the counter-rotational case, where .…”

Section: Resultsmentioning

confidence: 99%

See 4 more Smart Citations

Spin annihilations of and spin sifters for transverse electric and transverse magnetic waves in co- and counter-rotations

Lee¹,

Mok²

2014

Beilstein J. Nanotechnol.

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SummaryThis study is motivated in part to better understand multiplexing in wireless communications, which employs photons carrying varying angular momenta. In particular, we examine both transverse electric (TE) and transverse magnetic (TM) waves in either co-rotations or counter-rotations. To this goal, we analyze both Poynting-vector flows and orbital and spin parts of the energy flow density for the combined fields. Consequently, we find not only enhancements but also cancellations between the two modes. To our surprise, the photon spins in the azimuthal direction exhibit a complete annihilation for the counter-rotational case even if the intensities of the colliding waves are of different magnitudes. In contrast, the orbital flow density disappears only if the two intensities satisfy a certain ratio. In addition, the concepts of spin sifters and enantiomer sorting are illustrated.

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Section: Introductionmentioning

confidence: 67%

“…1. Although we are not concerned with the second set of jump conditions as in [22], there is a more serious argument about the possible electrodynamics within the thin layer in [23]. …”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…Solely with the two continuity relations and , we arrive at a pair of solutions and to the desired axial fields [22]. Here, the refractive-index ratio N is defined by:…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Spin annihilations of and spin sifters for transverse electric and transverse magnetic waves in co- and counter-rotations

Lee¹,

Mok²

2014

Beilstein J. Nanotechnol.

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Poynting vector of an ELF electromagnetic wave in three-layered ocean floor

2018

Journal of Electromagnetic Waves and Applications

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Cylindrical electromagnetic waves with radiation and absorption of energy

Lee

Mok

2016

Pac. J. Math. Ind.

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Cylindrical electromagnetic waves have been examined mostly with a radiation condition applied at the radial far field. In modern optical technology, there are however growing number of applications where both radiation and absorption of energy should be taken into account. In order to illustrate the ramifications of such energy balance, we take plasmonic waves propagating around a metallic nanowire as an example. Hence, we provide both key mathematical formulas and corresponding numerical results for the collective electronic motions in resonance with electromagnetic waves. Firstly, we show theoretically why a net Poynting energy flow is directed inward to the cylindrical axis. Secondly, we invoke a Cauchy-Schwarz inequality for complex variables in deriving an upper bound on the specific transverse light spin along the axial direction. Thirdly, we could identify both first-and second-order polarizations. Overall, loss-induced and gain-compensated characteristics are illustrated for a dissipative system. In addition, the stability of neutral states are examined by relaxing the angular periodicity.

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Gain-Assisted Poynting-Vector Vortices Realized With a Single Lossy Metal Wire

Cited by 4 publications

References 23 publications

Spin annihilations of and spin sifters for transverse electric and transverse magnetic waves in co- and counter-rotations

Spin annihilations of and spin sifters for transverse electric and transverse magnetic waves in co- and counter-rotations

Poynting vector of an ELF electromagnetic wave in three-layered ocean floor

Cylindrical electromagnetic waves with radiation and absorption of energy

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