Multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene

Chen, Hao; Chen, Zihao; Yang, Hua; Wen, Lianghua; Yi, Zao; Zhou, Zigang; Dai, Bo; Zhang, Jianguo; Wu, Xianwen; Wu, Pinghui

doi:10.1039/d2ra00611a

Cited by 242 publications

(117 citation statements)

References 62 publications

Supporting

Mentioning

115

Contrasting

Unclassified

Order By: Relevance

“…In addition to the purely academic interest, the structure of the electromagnetic field in the immediate vicinity of a nanoparticle irradiated by a laser beam is of utmost importance for numerous nanomaterial science problems, see, e.g., [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] and references therein. It is known that the topological structure of the Poynting vector field in resonant light scattering by nanoparticles may be complicated.…”

Section: Introductionmentioning

confidence: 99%

Nature of the Poynting Vector Field Singularities in Resonant Light Scattering by Nanoparticles

Tribelsky

Rubinstein

2022

Nanomaterials

View full text Add to dashboard Cite

Singularities of the Poynting vector field subwavelength patterns in resonant light scattering by nanoparticles are discussed and classified. There are two generic types of the singularities, namely, (i) the singularities related to the vanishing of the magnetic (and/or electric) field at the singular points and (ii) the singularities related to the formation of standing waves in proximity to the singular points. The connection of these types of singularities to the topology of the singular points, space dimension (3D vs. 2D), and energy conservation law are revealed. In particular, it is shown that in 2D cases in non-dissipative media, the energy conservation reduces the possible types of generic singular points to saddles and centers only. In 3D cases, a universal expression connecting different components of the Poynting vector and valid for any generic singularities is derived and numerically checked for various types of singular points.

show abstract

Section: Introductionmentioning

confidence: 99%

Nature of the Poynting Vector Field Singularities in Resonant Light Scattering by Nanoparticles

Tribelsky

Rubinstein

2022

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…However, owing to the van der Waals and π–π interactions between graphene sheets, irreversible stacking and agglomeration occur, which negatively affects the mechanical properties and pore structure of graphene aerogels, thus limiting their practical applications. Moreover, aerogels composed of a single material do not have multiple functions [ 8 , 9 , 10 , 11 , 12 ]. Therefore, other functional materials have been incorporated into graphene aerogels to address the above-mentioned problems.…”

Section: Introductionmentioning

confidence: 99%

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

Wang

Xie

et al. 2022

Nanomaterials

View full text Add to dashboard Cite

Graphene-cellulose-polyethyleneimine aerogels (GA-MCC-PEI) were prepared using a simple, environmentally friendly method to remove anionic and cationic dyes in water. Graphene-cellulose hydrogels were prepared using a hydrothermal method and then immersed in a polyethyleneimine aqueous solution for 48 h to obtain graphene-cellulose-polyethyleneimine hydrogels, which were then freeze-dried. The light and porous composite aerogels had a good compression resistance, and the maximum allowable pressure of the graphene-cellulose-polyethyleneimine aerogel with a cellulose content of 43% was 21.76 kPa, which was 827 times its weight. Adsorption of the anionic dye amaranth and the cationic dye methylene blue by the graphene-cellulose-polyethyleneimine aerogel was satisfactorily modeled using the Langmuir isothermal equation, indicating monolayer adsorption. When the cellulose content was 39%, the equilibrium adsorption capacities of the composite aerogel for amaranth and methylene blue were 369.37 mg/g and 237.33 mg/g, respectively. This graphene-cellulose-polyethyleneimine aerogel can be used to remove dye pollutants in water to maintain ecological balance, thus broadening the application space of aerogel materials, that is, as adsorbents in different environments.

show abstract

“…SPPs can be excited in two ways, by electrons or light waves. When the size of a specific nanostructure is reached, SPPs can break through the limited conventional diffraction and control light on the nanoscale [ 3 , 4 ]. SPPs have three characteristics: low dimension and high intensity and subwavelength, which make them a good energy and information carrier, and their ability to combine subwavelengths can be used to make various optical devices [ 5 ], such as wavelength demultiplexers [ 6 , 7 ], plasmonic filters [ 8 , 9 ], logic gates [ 10 ], couplers [ 11 ], and sensors [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator

Yan

2022

Micromachines

View full text Add to dashboard Cite

In this study, a novel refractive index sensor structure was designed consisting of a metal–insulator–metal (MIM) waveguide with two rectangular baffles and a U-Shaped Ring Resonator (USRR). The finite element method was used to theoretically investigate the sensor’s transmission characteristics. The simulation results show that Fano resonance is a sharp asymmetric resonance generated by the interaction between the discrete narrow-band mode and the successive wide-band mode. Next, the formation of broadband and narrowband is further studied, and finally the key factors affecting the performance of the sensor are obtained. The best sensitivity of this refractive-index sensor is 2020 nm/RIU and the figure of merit (FOM) is 53.16. The presented sensor has the potential to be useful in nanophotonic sensing applications.

show abstract

Multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene

Abstract: We propose a multi-mode surface plasmon resonance absorber based on dart-type single-layer graphene, it has advantages of polarization independence, tunability and high sensitivity. Four modes of polarization-independent perfect absorption are achieved at 3000–5000 nm.

Cited by 242 publications

References 62 publications

Nature of the Poynting Vector Field Singularities in Resonant Light Scattering by Nanoparticles

Nature of the Poynting Vector Field Singularities in Resonant Light Scattering by Nanoparticles

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

Refractive Index Sensor Based on a Metal-Insulator-Metal Bus Waveguide Coupled with a U-Shaped Ring Resonator

Contact Info

Product

Resources

About