Topological extraordinary optical transmission

Baskourelos, Konstantinos; Tsilipakos, Odysseas; Stefański, Tomasz P.; Galata, Sotiria F.; Economou, E. N.; Kafesaki, Maria; Tsakmakidis, Kosmas L.

doi:10.1103/physrevresearch.4.l032011

Cited by 5 publications

(2 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8,9 They can be also used for the storage of light, but the coupling is certainly sensitive to the structure parameters, which need high processing resolution of the structure. Another work of trapping light is based on magnetically biased unidirectional waveguides, 10 but the waveguide structure cannot achieve the function of exporting signal. In practical applications, the storage method of optical signals is basically based on lowtemperature and high-refractive-index media, but the storage time is limited by the length of the media.…”

Section: Introductionmentioning

confidence: 99%

Achieving reading–writing electromagnetic signal memory based on high-order topological state

Gong,

Fang

2024

Journal of Applied Physics

View full text Add to dashboard Cite

In order to achieve an optical signal memory device with read–write functions, a topological Su–Schrieffer–Heeger lattice is proposed. It is found that a transformation between a topological corner state and an edge state occurs under the magneto-optical effect. Without an external magnetic field, the electromagnetic (EM) signal is confined and stored at the corner, which realizes the writing process of a signal. When an external magnetic field is applied, the EM signal is released from the corner to the edge, which realizes the reading process of the signal. The result is expected to provide guidance for the design of high-performance reading–writing EM memories.

show abstract

Section: Introductionmentioning

confidence: 99%

Achieving reading–writing electromagnetic signal memory based on high-order topological state

Gong,

Fang

2024

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…Though most of the mechanisms regarding EOT have been elucidated and reported between the late 90's and the early 2010's, arrays of slits continued to show significant interests both conceptually through recent reported studies in the diffraction limit [40], bound state in the continuum [41] topological [42], non-linear and tunable [43] metamaterials as well as practically across sensing [44], filtering [45] and wave guiding applications [46].…”

Section: Introductionmentioning

confidence: 99%

Controlled Dispersion and Transmission-Absorption of Optical Energy through Scaled Metallic Plate Structures

Oubeniz,

Belkacem,

Mangach

et al. 2023

Materials

View full text Add to dashboard Cite

The dispersive feature of metals at higher frequencies has opened up a plethora of applications in plasmonics. Besides, Extraordinary Optical Transmission (EOT) reported by Ebbesen et al. in the late 90’s has sparked particular interest among the scientific community through the unprecedented and singular way to steer and enhance optical energies. The purpose of the present paper is to shed light on the effect of the scaling parameter over the whole structure, to cover the range from the near-infrared to the visible, on the transmission and the absorption properties. We further bring specific attention to the dispersive properties, easily extractable from the resonance frequency of the drilled tiny slits within the structure. A perfect matching between the analytical Rigorous Coupled Wave Analysis (RCWA), and the numerical Finite Elements Method (FEM) to describe the underlying mechanisms is obtained.

show abstract

Topological and high-performance nonreciprocal extraordinary optical transmission from a guided mode to free-space radiation

Xu,

Luo,

Yong

et al. 2023

Commun Phys

View full text Add to dashboard Cite

Extraordinary optical transmission (EOT) is a hallmark of surface plasmons and a precursor to nanoplasmonics and metamaterials. However, to the best of our knowledge, this effect has never been topologically protected in three dimensions, leaving it vulnerable to structural imperfections, nonlocal effects, and backreflections. We report broadband, three-dimensional unidirectional structures that allow for EOT (normalized transmission > 1) through deep-subdiffractional single holes, immune to these deleterious effects. These structures avoid unnecessary propagation losses and achieve maximum transmission through a single hole, limited only by unavoidable dissipative losses. In the limit of vanishing losses, the transmission through a deep-subdiffractional hole can approach unity, significantly surpassing existing devices, and rivaling the performance of negative-index ‘perfect’ lenses. The topological stability of these structures renders them robust against surface roughness, defects, and nonlocality, without the need for elaborate meta-structures or tapering.

show abstract

Topological extraordinary optical transmission

Cited by 5 publications

References 16 publications

Achieving reading–writing electromagnetic signal memory based on high-order topological state

Achieving reading–writing electromagnetic signal memory based on high-order topological state

Controlled Dispersion and Transmission-Absorption of Optical Energy through Scaled Metallic Plate Structures

Topological and high-performance nonreciprocal extraordinary optical transmission from a guided mode to free-space radiation

Contact Info

Product

Resources

About