scholarly journals A New Electro-Optical Switch Modulator Based on the Surface Plasmon Polaritons of Graphene in Mid-Infrared Band

Sensors ◽  
2018 ◽  
Vol 19 (1) ◽  
pp. 89 ◽  
Author(s):  
Ming Cai ◽  
Shulong Wang ◽  
Bo Gao ◽  
Yindi Wang ◽  
Tao Han ◽  
...  
Keyword(s):  
Energy Loss ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Surface Plasmon Polariton ◽  
Modulation Depth ◽  
Optical Switch ◽  
Dielectric Structure ◽  
Infrared Band ◽  
Mid Infrared ◽  
Plasmon Polaritons

In this paper, a new electro-optical switch modulator based on the surface plasmon polaritons of graphene is proposed. An air–graphene-substrate–dielectric structure is adopted in the modulator. In this structure, the graphene is considered as a film of metal whose thickness tends to be infinitesimal. By changing the external voltage, the boundary conditions can be changed to decide whether the surface plasmon polariton waves can be excited in mid-infrared band. Because of this effect, the structure can be used as an electro–optical switch modulator, whose modulation depth is about 100% in theory. Finally, the 3 dB bandwidth (~34 GHz) and the energy loss (36.47 fJ/bit) of the electro–optical switch modulator are given, whose low energy loss is very suitable for engineering applications.

scholarly journals Optical Transport Properties of Graphene Surface Plasmon Polaritons in Mid-Infrared Band

Crystals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 354 ◽  
Author(s):  
Yindi Wang ◽  
Hongxia Liu ◽  
Shulong Wang ◽  
Ming Cai ◽  
Lan Ma
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Infrared Region ◽  
Transmission Characteristics ◽  
Infrared Band ◽  
Theoretical Derivation ◽  
Mid Infrared ◽  
Graphene Surface ◽  
Silicon Based ◽  
Plasmon Polaritons

The excellent transmission characteristics of graphene surface plasmon polaritons in mid-infrared band were analyzed and verified effectively through theoretical derivation and soft simulation in this paper. Meanwhile, a sandwich waveguide structure of dielectric–graphene–substrate–dielectric based on graphene surface plasmon polaritons (SPPs) was presented. Simulation results indicate that graphene SPPs show unique properties in the mid-infrared region including ultra-compact mode confinement and dynamic tunability, which allow these SPPs to overcome the defects of metal SPPs and traditional silicon-based optoelectronic devices. Thus, they can be used to manufacture subwavelength devices. The work in this paper lays a theoretical foundation for the application of graphene SPPs in the mid-infrared region.

scholarly journals Switchable Gratings for Ultracompact and Ultrahigh Modulation Depth Plasmonic Switches

2021 ◽  
Author(s):  
Sandeep Kumar Chamoli ◽  
Mohamed ElKabbash ◽  
Chunlei Guo
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Modulation Depth ◽  
Optical Switch ◽  
Optical Switches ◽  
High Modulation ◽  
Bulk Plasmon ◽  
Non Local ◽  
Change Material ◽  
Plasmon Polaritons

Abstract Plasmonic interconnects present a compact platform for high modulation-depth optical switches. Conventional plasmonic switching approaches depend on modifying the dispersion of the surface plasmon polariton (SPP) wave at the metal/dielectric interface. Here, we introduce a novel scheme for ultracompact and high modulation depth (MD) plasmonic switching using a phase-change material-based switchable grating consisting of Antimony Trisulfide (Sb2S3). In its ON state, the switchable grating excites surface plasmon polaritons (SPP) and bulk plasmon polaritons (BPPs) in plasmonic films and hyperbolic metamaterials (HMMs), respectively. The SPP switch has a footprint of 23.1 µm2 and a MD of up to 40 dB. The BPP switch has a footprint of 13.12 µm2 and a MD of 29.7 dB. The BPP switch enjoys a broadband MD from 299–375 THz. Concurrently, we show that the same switchable grating on plasmonic film and on HMM is a reflection-based optical switch. Finally, we present a novel scheme for non-local control over the spontaneous emission rate and out-coupled power from emitters embedded in HMMs.

Surface Plasmon Polaritons and Inverse Faraday Effect

2012 ◽  
Vol 190 ◽  
pp. 369-372 ◽  
Author(s):  
N.E. Khokhlov ◽  
V.I. Belotelov ◽  
A.N. Kalish ◽  
A.K. Zvezdin
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Surface Plasmon Polariton ◽  
Faraday Effect ◽  
Angle Of Incidence ◽  
Local Magnetization ◽  
Inverse Faraday Effect ◽  
Order Of Magnitude ◽  
Plasmon Polariton ◽  
Plasmon Polaritons

t is shown that the inverse Faraday effect appears in the case of surface plasmon polariton propagation near a metal-paramagnetic interface. The inverse Faraday effect in nanostructured periodically perforated metaldielectric films increases because of the excitation of surface plasmon polaritons. In this case, a stationary magnetic field is amplified by more than an order of magnitude compared to the case of a smooth paramagnetic film. The distribution of an electromagnetic field is sensitive to the wavelength and the angle of incidence of light, which allows one to efficiently control the local magnetization arising due to the inverse Faraday effect.

Efficient mid-infrared wavelength converter based on plasmon-enhanced nonlinear response in graphene nanoribbons

2021 ◽  
Author(s):  
Jiao Chi ◽  
Hongjun Liu ◽  
Zhaolu Wang ◽  
Nan Huang
Keyword(s):  
Graphene Sheet ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Graphene Nanoribbons ◽  
Wavelength Converter ◽  
Third Order ◽  
Mid Infrared ◽  
Infrared Wavelength ◽  
Graphene Plasmons ◽  
Plasmon Polaritons

Abstract Graphene plasmons with enhanced localized electric field have been used for boosting the light-matter interaction in linear optical nano-devices. Meanwhile, graphene is an excellent nonlinear material for several third-order nonlinear processes. We present a theoretical investigation of the mechanism of plasmon-enhanced third-order nonlinearity susceptibility of graphene nanoribbons. It is demonstrated that the third-order nonlinearity susceptibility of graphene nanoribbons with excited graphene surface plasmon polaritons can be an order of magnitude larger than the intrinsic susceptibility of a continuous graphene sheet. Combining these properties with the relaxed phase matching condition due to the ultrathin graphene, we propose a novel plasmon-enhanced mid-infrared wavelength converter with arrays of graphene nanoribbons. The wavelength of sig-nal light is in mid-infrared range, which can excite the tunable surface plasmon polaritons in arrays of graphene nanoribbons. The efficiency of the converter from mid-infrared to near-infrared wavelength can be remarkably improved by 60 times compared with the graphene sheet without graphene plasmons. This work provides a novel idea for the efficient application of graphene in the nonlinear optical nano-devices. The proposed mid-infrared wavelength converter is compact, tunable and has promising potential in graphene-based mid-infrared detector with high detection efficiency.

All-optical sensor based on surface plasmon polaritons in multi-layers metal-dielectric structure

2014 ◽  
Vol 12 (s1) ◽  
pp. S12403-312405
Author(s):  
Jin Li Jin Li ◽  
Yundong Zhang Yundong Zhang ◽  
Hanyang Li Hanyang Li ◽  
Chengbao Yao Chengbao Yao ◽  
Ping Yuan Ping Yuan
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Optical Sensor ◽  
Dielectric Structure ◽  
All Optical ◽  
Plasmon Polaritons

scholarly journals Optical Detection and Spatial Modulation of Mid-Infrared Surface Plasmon Polaritons in a Highly Doped Semiconductor

2017 ◽  
Vol 6 (3) ◽  
pp. 1700492 ◽  
Author(s):  
Davide Maria Di Paola ◽  
Anton V. Velichko ◽  
Mario Bomers ◽  
Nilanthy Balakrishnan ◽  
Oleg Makarovsky ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Optical Detection ◽  
Spatial Modulation ◽  
Mid Infrared ◽  
Plasmon Polaritons

Low-cost mid-infrared polarizer based on direct coupling to surface-plasmon polaritons

2020 ◽  
Author(s):  
Alireza Shahsafi ◽  
Jad Salman ◽  
Bryan E. Rubio Perez ◽  
Yuzhe Xiao ◽  
Chenghao Wan ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Low Cost ◽  
Direct Coupling ◽  
Mid Infrared ◽  
Plasmon Polaritons

scholarly journals Generation of Bessel Surface Plasmon Polaritons in a Finite-Thickness Metal Film

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
S. N. Kurilkina ◽  
V. N. Belyi ◽  
N. S. Kazak
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Metal Film ◽  
Surface Plasmon Polariton ◽  
Metal Layer ◽  
Near Field ◽  
Finite Thickness ◽  
Experimental Realization ◽  
Analytical Expressions ◽  
Plasmon Polaritons

A theory of generation of low- and high-index Bessel surface plasmon polaritons and their superposition in a metal film of a finite thickness is developed. Correct analytical expressions are obtained for the field of two families of Bessel surface plasmon polariton modes formed inside and outside the metal layer. The intensity distribution near the boundary of the layer has been calculated and analyzed. A scheme for the experimental realization of a superposition of Bessel surface plasmon polaritons is suggested. Our study demonstrates that it is feasible to use the superposition of Bessel surface plasmon polaritons as a virtual tip for near-field optical microscopy with a nanoscale resolution.

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