Efficient planar plasmonic directional launching of linearly polarized light in a catenary metasurface

Chen, Panpan; Chen, Cong; Qin, Saisai; Xi, Jianxin; Huang, Wanxia; Shi, Fenghua; Li, Kuanguo; Li, Liang; Shi, Jianping

doi:10.1039/d0cp05095d

“…To the best of our knowledge, researchers have realized directional excitation of SPPs under LCP and RCP based on the geometric phase modulation theory of the catenary [31,32]. Besides, through the analysis of the exciting electromagnetic mode in catenary apertures, our research group realized the SPPs directional excitation under linearly polarized light on the basis of mode superposition theory [33].…”

Section: Device Structure and Designmentioning

confidence: 99%

“…The catenary curve whose shape is similar to the free-hanging chain with uniform force at each point has been widely used in the micro-nano optics [26][27][28][29][30]. Owing to the abundant electromagnetic modes and geometric phase modulation ability of the catenary apertures, the SPPs directional launching can be modulated under the incidence of both linearly and circularly polarized lights with different directional excitation mechanisms [31][32][33]. Therefore, complex SPPs response can be achieved by using the unit catenary aperture, then considering the remarkable ability of metasurface in light manipulation [34][35][36][37], the SPPs with different directions under different incident light polarization states can be realized by designing a reasonable metasurface.…”

Section: Introductionmentioning

confidence: 99%

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

Chen

¹

,

Chen

²

,

Xi

³

et al. 2021

Self Cite

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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.

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“…To the best of our knowledge, researchers have realized directional excitation of SPPs under LCP and RCP based on the geometric phase modulation theory of the catenary [31,32]. Besides, through the analysis of the exciting electromagnetic mode in catenary apertures, our research group realized the SPPs directional excitation under linearly polarized light on the basis of mode superposition theory [33].…”

Section: Device Structure and Designmentioning

confidence: 99%

“…The catenary curve whose shape is similar to the free-hanging chain with uniform force at each point has been widely used in the micro-nano optics [26][27][28][29][30]. Owing to the abundant electromagnetic modes and geometric phase modulation ability of the catenary apertures, the SPPs directional launching can be modulated under the incidence of both linearly and circularly polarized lights with different directional excitation mechanisms [31][32][33]. Therefore, complex SPPs response can be achieved by using the unit catenary aperture, then considering the remarkable ability of metasurface in light manipulation [34][35][36][37], the SPPs with different directions under different incident light polarization states can be realized by designing a reasonable metasurface.…”

Section: Introductionmentioning

confidence: 99%

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

Chen

¹

,

Chen

²

,

Xi

³

et al. 2021

Preprint

Self Cite

0

View full text Add to dashboard Cite

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.

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“…With the development of Internet of things and cloud technology, the amount of data that modern communication needs to process is becoming more and more huge [1][2][3][4][5]. In order to improve the communication bandwidth, more and more communication networks choose optical fiber transmission.…”

Section: Introductionmentioning

confidence: 99%

Modulation of the Transmission Spectra of the Double‐Ring Structure by Surface Plasmonic Polaritons

Lai

¹

,

Guo

²

,

Liu

³

et al. 2021

Wireless Communications and Mobile Computing

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This paper proposes a new structural design to excite surface plasmonic polaritons to enhance the double-ring interference structure. The double-ring structure was etched into a thin film to form fundamental interference patterns, and periodic concentric-ring grooves were employed to gather energy from the surrounding regions through the excitation of surface plasmonic polaritons. Accordingly, the energy of the incident light can be concentrated at the center. The surface plasmon modulates the interference pattern and the transmission spectra. The transmission peak position and its intensity can be tuned by changing the alignment of the grooves. The proposed structure can be applied for designing plasmonic devices as useful components of the plasmonic toolbox.

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Efficient planar plasmonic directional launching of linearly polarized light in a catenary metasurface

Abstract: Efficient directional excitation of planar surface plasmon polaritons (SPPs) has important and wide applications in micro-nano photonic technology. Recently, by using geometric phase and spin-orbit interaction, catenary structures have been...

Cited by 12 publications

References 45 publications

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

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

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

Modulation of the Transmission Spectra of the Double‐Ring Structure by Surface Plasmonic Polaritons

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