scholarly journals High-performance and compact broadband terahertz plasmonic waveguide intersection

Nanophotonics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1811-1819 ◽  
Author(s):  
Mingrui Yuan ◽  
Yanfeng Li ◽  
Yongchang Lu ◽  
Ying Zhang ◽  
Ziying Zhang ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
High Performance ◽  
Surface Plasmon Polariton ◽  
Broad Band ◽  
Plasmonic Waveguide ◽  
Integrated Systems ◽  
Low Loss ◽  
Wide Range ◽  
Plasmon Polariton ◽  
New Applications

AbstractFor terahertz (THz) integrated systems, an intersection between waveguides is inevitable and is often accompanied by considerable crosstalk and loss. Here, we propose and experimentally demonstrate a novel type of crossing with a footprint less than 0.2 × 0.2 mm2 for THz surface plasmon polariton waveguiding. With an optimized crossover structure, the measured loss of the intersection is as low as 0.89 dB/crossing, and the crosstalk is less than −19.06 dB/crossing at 0.55 THz. The proposed crossing structure is compact and has low loss and crosstalk within a broad band, which will pave the way for a wide range of new applications for THz integrated systems.

The anisotropic broadband surface plasmon polariton and hot carrier properties of borophene monolayer

Nanophotonics ◽  
2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Chaochao Jian ◽  
Xiangchao Ma ◽  
Jianqi Zhang ◽  
Jiali Jiang
Keyword(s):  
Transport Properties ◽  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Hot Carriers ◽  
Low Loss ◽  
Typical Application ◽  
Carrier Lifetimes ◽  
Photocatalytic Reactors ◽  
Plasmon Polariton ◽  
Energy And Momentum

Abstract Borophene monolayer with its intrinsic metallic and anisotropic band structures exhibits extraordinary electronic, optical, and transport properties. Especially, the high density of Dirac electrons enables promising applications for building low-loss broadband SPP devices. However, a systematic characterization of the surface plasmon polariton (SPP) properties and hot carriers generated from the inevitable SPP decay in borophene has not been reported so far. Most importantly, the mechanism for SPP losses remains obscurely quantified. In this work, from a fully first-principles perspective, we explicitly evaluate the main loss effects of SPP in borophene, including the Drude resistance, phonon-assisted intraband and direct interband electronic transitions. With this knowledge, we further calculate the frequency- and polarization-dependent SPP response of borophene, and evaluate some typical application-dependent figure of merits of SPP. On the other hand, we evaluate the generation and transport properties of plasmon-driven hot carriers in borophene, involving energy- and momentum-dependent carrier lifetimes and mean free paths, which provide deeper insight toward the transport of hot carriers at the nanoscale. These results indicate that borophene has promising applications in next-generation low-loss optoelectronic devices and photocatalytic reactors.

Surface plasmon polariton nanolasers: Coherent light sources for new applications

2018 ◽  
Vol 27 (11) ◽  
pp. 114208 ◽  
Author(s):  
Yu-Hsun Chou ◽  
Chia-Jui Chang ◽  
Tzy-Rong Lin ◽  
Tien-Chang Lu
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Light Sources ◽  
Coherent Light ◽  
Plasmon Polariton ◽  
New Applications

High-performance spoof surface plasmon polariton waveguides and splitters based on Greek-cross fractal units

2020 ◽  
Vol 53 (23) ◽  
pp. 235502
Author(s):  
Longfang Ye ◽  
Yao Chen ◽  
Jianliang Zhou ◽  
Hao Feng ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
High Performance ◽  
Surface Plasmon Polariton ◽  
Plasmon Polariton

scholarly journals Bulk and surface plasmon polariton excitation in RuO_2 for low-loss plasmonic applications in NIR

2012 ◽  
Vol 20 (8) ◽  
pp. 8618 ◽  
Author(s):  
L. Wang ◽  
C. Clavero ◽  
K. Yang ◽  
E. Radue ◽  
M. T. Simons ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Low Loss ◽  
Plasmon Polariton

scholarly journals Analysis of Surface Plasmon Polariton Conversion Coefficient In Slit-Groove Structure

2021 ◽  
Author(s):  
Yeonsang Park
Keyword(s):  
Surface Plasmon ◽  
Conversion Efficiency ◽  
Surface Plasmon Polariton ◽  
Conversion Coefficient ◽  
Single Scattering ◽  
Generation Structure ◽  
Wide Range ◽  
Groove Structure ◽  
Plasmon Polariton ◽  
Reported Data

Abstract A method for the analysis of finding the conversion efficiency of the surface plasmon polariton in slit-groove structures is proposed and studied. The conversion efficiency of the surface plasmon polariton can be determined by measuring the intensities of light scattered at the slit and groove positions. To verify the usefulness of the proposed method, two rigorous simulations based on the finite-difference time-domain method were executed and the simulation results compared with previously reported data. One was to mimic the far-field imaging experiment in slit-groove structure and the other was to calculate the conversion coefficient directly in a single scattering structure. The SPP conversion efficiencies obtained from the two simulations were approximately 0.232 and 0.220 respectively, and these agreed with the reported data. The suggested method can be used regardless of the shape of the plasmon-generation structure; therefore, it is expected to be useful in a wide range of experiments with different scattering structures.

scholarly journals Compact Optical Waveguides Based on Hybrid Index and Surface-Plasmon-Polariton Guidance Mechanisms

2007 ◽  
Vol 2007 ◽  
pp. 1-7 ◽  
Author(s):  
Min Yan ◽  
Min Qiu
Keyword(s):  
Surface Plasmon ◽  
Optical Waveguides ◽  
Surface Plasmon Polariton ◽  
Field Size ◽  
Hybrid Index ◽  
Dielectric Waveguides ◽  
Low Loss ◽  
Mode Field ◽  
Telecommunication Wavelength ◽  
Plasmon Polariton

Surface-plasmon-polariton (SPP) waveguides made of materials available in nature have, in general, been found to suffer from very high absorption loss when light confinement is beyond diffraction limit. In this paper, the possibility of combining both the conventional index-guiding and the SPP-guiding mechanisms together into one single waveguide is being explored. Such waveguides, expectedly, inherent the low-loss feature of all-dielectric waveguides as well as the superior mode field confinement possessed by SPP waveguides. By using experimentally ready materials, it is theoretically shown that compact metallodielectric waveguides can be designed with a∼500×500 nm2core size around the 1550 nm telecommunication wavelength. The examined waveguides can be interpreted as a gap SPP waveguide with an inner dielectric core. Compared to pure SPP waveguides, such hybrid waveguides have a comparable mode field size, but with significantly lower loss (∼0.05 dB/μmfor either quasi-TE or quasi-TM operation). Therefore they can be potentially deployed for a range of integrated photonic applications.

On the surface plasmon polariton wave at the planar interface of a metal and a chiral sculptured thin film

2008 ◽  
Vol 465 (2101) ◽  
pp. 87-107 ◽  
Author(s):  
John A Polo ◽  
Akhlesh Lakhtakia
Keyword(s):  
Thin Film ◽  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Planar Interface ◽  
Minimum Value ◽  
Polariton Wave ◽  
Wide Range ◽  
Sculptured Thin Film ◽  
Plasmon Polariton ◽  
Chiral Sculptured Thin Film

The solution of a dispersion equation indicates the theoretical existence of multiple modes of surface plasmon polariton wave propagation at the planar interface of a metal and a chiral sculptured thin film (STF). One mode appears to occur over a wide range of the structural period of the chiral STF, while all other modes exist only above some minimum value of the structural period, the minimum value being different for each mode. In order to excite the different modes, the interface can be incorporated in the commonplace Kretschmann configuration, for which our calculations show that the efficient excitation of different modes would require different numbers of structural periods of the chiral STF.

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