Switchable surface plasmon dichroic splitter modulated by optical polarization

Lee, Seung‐Yeol; Yun, Hansik; Lee, Yohan; Lee, Byoungho

doi:10.1002/lpor.201400025

Cited by 13 publications

(7 citation statements)

References 37 publications

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“…We show that the inherently strong magnetic dipole response of the silicon particle provides extremely efficient excitation of a SPP wave, whereas mutual interference of the electric and magnetic dipole resonances of the nanoantenna provides high front‐to‐back ratio contrast and directivity values for the excited surface waves. As a result, dielectric nanoantenna holds a major advantage over previously proposed SPP demultiplexer designs, offering both extreme compactness as compared to grating structures and decisively superior spectral resolution as compared to other subwavelength demultiplexer solutions . The theoretical framework that we formulate to describe the physics behind the observed phenomena can be easily extended to more complex interfaces supporting other types of surface waves .…”

Section: Introductionmentioning

confidence: 99%

Chirality Driven by Magnetic Dipole Response for Demultiplexing of Surface Waves

Sinev

Bogdanov

Komissarenko

et al. 2017

Laser & Photonics Reviews

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Surface electromagnetic waves are characterized by the intrinsic spin‐orbit interaction which results in the fascinating spin‐momentum locking. Therefore, directional coupling of light to surface waves can be achieved through chiral nanoantennas. Here, we show that dielectric nanoantenna provides chiral response with strong spectral dependence due to the interference of electric and magnetic dipole momenta when placed in the vicinity of the metal‐air interface. Remarkably, chiral behaviour in the proposed scheme does not require elliptical polarization of the pump beam or the geometric chirality of the nanoantenna. We show that the proposed ultracompact and simple dielectric nanoantenna allows for both directional launching of surface plasmon polaritons on a thin gold film and their demultiplexing with a high spectral resolution.

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Section: Introductionmentioning

confidence: 99%

Chirality Driven by Magnetic Dipole Response for Demultiplexing of Surface Waves

Sinev

Bogdanov

Komissarenko

et al. 2017

Laser & Photonics Reviews

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show abstract

“…Surface plasmon polaritons (SPPs) [1,2] with remarkable capabilities of subwavelength field confinement and strong field enhancement have provided an efficient route to realize on-chip optical devices such as SPPs splitter, directional coupler and ultrasensitive sensor [3][4][5][6][7][8][9][10][11]. Among them, the SPPs splitter, which can separate the incident beams to propagate in different directions, plays an important role in the router and Mach-Zehnder interferometers (MZIs) [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Multi-Directional Plasmonic Splitter and Polarization Analyzer Based on the Catenary Metasurface

Chen

et al. 2021

Plasmonics

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Owing to the unique properties of strongly confined and enhanced electric fields, surface plasmon polaritons (SPPs) provide a new platform for the realization of ultracompact plasmonic circuits. However, there are challenges in coupling light into SPPs efficiently and subsequently routing SPPs. Here, we propose a multi-directional SPPs splitter and polarization analyzer based on the catenary metasurface. Based on the abundant electromagnetic modes and geometric phase modulation principle of catenary structure, the device has realized high efficiency beam splitting for four different polarization states (x-polarization, y-polarization, LCP and RCP). The central wavelength of the device is 632 nm and the operation bandwidth can reach 70 nm (585-655 nm). Based on the phenomenon of SPPs beam splitting, we present a prototype of a polarization analyzer, which can detect the polarization state of incident light by adding photodetector with light intensity logic threshold in four directions.Moreover, by combining this device with dynamic polarization modulation techniques, it is possible to be served as a router or switch in integrated photonic circuits.

show abstract

Section: Introductionmentioning

confidence: 99%

Multi-directional plasmonic splitter and polarization analyzer based on the catenary metasurface

Chen

et al. 2021

Preprint

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Owing to the unique properties of strongly confined and enhanced electric fields, surface plasmon polaritons (SPPs) provide a new platform for the realization of ultracompact plasmonic circuits. However, there are challenges in coupling light into SPPs efficiently and subsequently routing SPPs. Here, we propose a multi-directional SPPs splitter and polarization analyzer based on the catenary metasurface. Based on the abundant electromagnetic modes and geometric phase modulation principle of catenary structure, the device has realized high efficiency beam splitting for four different polarization states ( x -polarization, y -polarization, LCP and RCP). The central wavelength of the device is 632 nm and the operation bandwidth can reach 70 nm (585-655 nm). Based on the phenomenon of SPPs beam splitting, we present a prototype of a polarization analyzer, which can detect the polarization state of incident light by adding photodetector with light intensity logic threshold in four directions. Moreover, by combining this device with dynamic polarization modulation techniques, it is possible to be served as a router or switch in integrated photonic circuits.

show abstract

Switchable surface plasmon dichroic splitter modulated by optical polarization

Cited by 13 publications

References 37 publications

Chirality Driven by Magnetic Dipole Response for Demultiplexing of Surface Waves

Chirality Driven by Magnetic Dipole Response for Demultiplexing of Surface Waves

Multi-Directional Plasmonic Splitter and Polarization Analyzer Based on the Catenary Metasurface

Multi-directional plasmonic splitter and polarization analyzer based on the catenary metasurface

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