Near‐Field Characterization of Graphene Plasmons by Photo‐Induced Force Microscopy

Liu, Jianxun; Park, Sung Min; Nowak, Derek; Tian, Mengchuan; Wu, Yanqing; Long, Hua; Wang, Kai; Wang, Bing; Lu, Peixiang

doi:10.1002/lpor.201800040

Cited by 27 publications

(17 citation statements)

References 41 publications

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“…Surface plasmon polaritons (SPPs), the surface waves supported at the interface of metal and dielectric, have attracted enormous attention as they are able to propagate beyond diffraction limit and realize strong field enhancement [1][2][3][4]. In searching for new plasmonic material, graphene, a two-dimensional material composed of carbon atoms, has emerged as a promising candidate instead of noble metal [5][6][7][8][9][10]. Graphene shows stable mechanical properties thanks to the stability of the sp2 bonds that form the hexagonal lattice and oppose a variety of in-plane deformations [5,11].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Jackiw-Rebbi Modes in Graphene Waveguide Arrays

Zhang

Zhao

et al. 2019

Applied Sciences

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We investigate the topological bound modes of surface plasmon polaritons (SPPs) in a graphene pair waveguide array. The arrays are with uniform inter-layer and intra-layer spacings but the chemical potential of two graphene in each pair are different. The topological bound modes emerge when two arrays with opposite sequences of chemical potential are interfaced, which are analogous to Jackiw-Rebbi modes with opposite mass. We show the topological bound modes can be dynamically controlled by tuning the chemical potential, and the propagation loss of topological bound modes can be remarkably reduced by decreasing the chemical potential. Thanks to the strong confinement of graphene SPPs, the modal wavelength of topological bound modes can be squeezed as small as 1/70 of incident wavelength. The study provides a promising approach to realizing robust light transport beyond diffraction limit.

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Section: Introductionmentioning

confidence: 99%

Plasmonic Jackiw-Rebbi Modes in Graphene Waveguide Arrays

Zhang

Zhao

et al. 2019

Applied Sciences

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“…Figure f is a plot of the PiFM signal intensity from h‐BN showing the fringe periodicity as a function of the illuminating light wavelength, from which the first mode in the lower Reststrahlen band can be inferred. In addition, Liu et al imaged propagating plasmons in graphene by illuminating a mid‐infrared laser beam on graphene suspended over a metallic grating with a dielectric spacer. Here, the magnitude of the optical force is proportional to the field intensity of the graphene.…”

Section: Optical Near‐field Methodsmentioning

confidence: 99%

“…By describing the underlying physical mechanisms and highlighting the individual strengths and limitations of each method, we intend to convey an intuitive understanding of their applicability for 2D polaritons. Figure presents a summary of examples of these techniques for probing polaritons in 2D materials.…”

Section: Introductionmentioning

confidence: 99%

Probing Polaritons in 2D Materials

Luo

Guo

et al. 2020

Advanced Optical Materials

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Polaritons in 2D materials exhibit extensive optical phenomena, such as an ultrahigh field confinement and tunability and, thus, have been attracting increasing attentions. Many different methods have been developed to characterize and manipulate polaritons, which in turn has promoted a steady booming of this field. Here, the significant progress made in probing polaritons in 2D materials based on the characterization method, i.e., optical far‐field, optical near‐field, and (opto)electronic methods is reviewed. Perspectives on the potential development and applications of these methods are also discussed.

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“…In order to solve this problem, researchers in recent years have invented a method of infrared spectrum imaging at nanometer-scale spatial resolution. Through three different methods, including infrared non-aperture near field scanning optical microscopy (IR-aNSOM) (Wickramasinghe and Williams, 1994 ; Centrone, 2015 ; Muller et al, 2015 ), light-induced resonance (PTIR) (Dazzi and Prater, 2017 ), and light-induced force microscopy (PiFM) (Liu et al, 2018 ). Because of the unique capabilities of these high-resolution chemical imaging methods, new insight can be gained in the study of interfacial films.…”

Section: Research Methods and Advanced Characterization For Cei Filmmentioning

confidence: 99%

Regulating the Performance of Lithium-Ion Battery Focus on the Electrode-Electrolyte Interface

Zhao

2020

Front. Chem.

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The development of lithium-ion battery (LIB) has gone through nearly 40 year of research. The solid electrolyte interface film in LIBs is one of most vital research topics, its behavior affects the cycle life and safety of LIBs significantly. Progress in understanding the interfacial layer on the negative and positive electrodes in LIBs has been the focus of considerable research in the past few decades, but there remains a number of problem to be understood at the fundamental level, and there is still a great deal of controversy regarding the composition and formation mechanism of the interfacial film. In this article, we summarize recent research conducted on the interfacial film in LIBs, including the film formation mechanism, the composition, and stability of the interfacial film on the positive electrodes (in both diluted and high-concentration electrolytes). And the methodologies and advanced techniques implemented for the characterization of the interfacial film. Finally, we put forward some of the future development direction for the interfacial film and urgent problems that need to be solved.

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Near‐Field Characterization of Graphene Plasmons by Photo‐Induced Force Microscopy

Cited by 27 publications

References 41 publications

Plasmonic Jackiw-Rebbi Modes in Graphene Waveguide Arrays

Plasmonic Jackiw-Rebbi Modes in Graphene Waveguide Arrays

Probing Polaritons in 2D Materials

Regulating the Performance of Lithium-Ion Battery Focus on the Electrode-Electrolyte Interface

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