Dynamic Control of Double Plasmon-Induced Transparencies in Aperture-Coupled Waveguide-Cavity System

Yan, Dongpeng; Cao, Guangtao; Yang, Hui; Zhou, Xiaoqing; Wu, Yunwen

doi:10.1007/s11468-017-0519-z

Cited by 134 publications

(57 citation statements)

References 40 publications

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“…The local electric field is enhanced as a result of more optical polarization corresponding to coupling with plasmonic resonance [62]. In linear photoluminescence, the electric field enhancement (γ E ) is defined by Equation (25).…”

Section: Electric Field Enhancement Factormentioning

confidence: 99%

“…The plasmonic metallic nanostructures; such as gold, silver, and copper can be embedded in many applications such as solar cells [31][32][33][34][35][36], up conversion [32,[37][38][39], light emitting diodes (LEDs) [40,41], lasers and laser printing [42][43][44][45], sensors and photodetectors [46][47][48][49]. Moreover, the plasmonic nanoparticles aid to slow down the speed of light which can enhance both absorption efficiency and optical coupling in the waveguide-cavity for optical communication networks and sensing applications [25,[48][49][50][51][52][53]. In addition, the spontaneous emission is wildly used to control and tuning the light sources and its efficiency [30,54].…”

Section: Introductionmentioning

confidence: 99%

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Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

et al. 2021

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This paper investigates the spontaneous decay rate of elliptical plasmonic nanostructures. The refractive index was analyzed using the effective medium theory (EMT). Then, the polarizability, spontaneous radiative, non-radiative decay rate, and electric field enhancement factor were characterized for the targeted elliptical nanostructures at different aspect ratios. All of the optical analyses were analyzed at different distances between the excited fluorescent coupled atom and the plasmonic nanostructure (down to 100 nm). This work is promising in selecting the optimum elliptical nanostructure according to the required decay rates for optical conversion efficiency control in energy harvesting for solar cells and optical sensing applications.

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Section: Electric Field Enhancement Factormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

et al. 2021

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“…With the continuous development of the social economy and the continuous progress of human civilization, the human demand for energy has been developing rapidly. As a kind of environmental protection and pollution-free renewable energy, solar energy has been widely developed and utilized by human beings [1][2][3][4]. Converting solar energy into other forms of energy is already well established.…”

Section: Introductionmentioning

confidence: 99%

Based on Ultrathin PEDOT:PSS/c-Ge Solar Cells Design and Their Photoelectric Performance

Yang

et al. 2021

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In recent years, nanostructures have improved the performance of solar cells and are regarded as the most promising microstructures. The optical properties of PEDOT:PSS/c-Ge hybrid solar cells (HSCs) based on the octagon germanium nanoparticles (O-GNPs) were numerically analyzed using the finite-difference time-domain (FDTD) method. The optimal structure of the hybrid solar cell is determined by changing the thickness of the organic layer and structural parameters of nanoparticles to enhance the optical absorption and eventually achieve high broadband absorption. By changing the structure parameter of O-GNPs, we studied its effect on solar cells. The optimization of geometric parameters is based on maximum absorption. The light absorption of our optimized HSCs is basically above 90% between 200 and 1500 nm. PEDOT:PSS is placed on top of O-GNPs to transmit the holes better, allowing O-GNPs to capture a lot of photons, to increase absorbance value properties in the AM1.5 solar spectral irradiated region. The transmittance is increased by adding poly-methyl methacrylate (PMMA). At the same time, the electrical characteristics of Ge solar cells were simulated by DEVICE, and short-circuit current (Jsc), open-circuit voltage (Voc), maximum power (Pmax), filling coefficient (FF) and photoelectric conversion efficiency (PCE) were obtained. According to the optimization results after adjusting the structural parameters, the maximum short-circuit current is 44.32 mA/cm2; PCE is 7.84 mW/cm2; FF is 69%. The results show that the O-GNPs have a good light trapping effect, and the structure design has great potential for the absorption of HSCs; it is believed that the conversion efficiency will be further improved through further research.

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“…When ε eff and µ eff are negative, the incident light couples with the plasmon wave on the surface of the material, causing the energy of the incident light to be absorbed [7,8]. The peculiar electromagnetic properties of metamaterials have not been found in natural materials and traditional composite materials [9][10][11][12], for example, backward waves and negative refractive index [13][14][15]. Based on these excellent optical and electromagnetic properties of metamaterials, researchers have expanded many applications of metamaterials, such as perfect lenses, stealth, photovoltaic solar cells, and absorbers [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A Tunable “Ancient Coin”-Type Perfect Absorber with High Refractive Index Sensitivity and Good Angular Polarization Tolerance

Luo

Shangguan

et al. 2021

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In this paper, we design and present a graphene-based “ancient coin”-type dual-band perfect metamaterial absorber, which is composed of a silver layer, silicon dioxide layer, and a top “ancient coin” graphene layer. The absorption performance of the absorber is affected by the hollowed-out square in the center of the graphene layer and geometric parameters of the remaining nano disk. The optical properties of graphene can be changed by adjusting the voltage, to control the absorption performance of the absorber dynamically. In addition, the centrally symmetric pattern structure greatly eliminates the polarization angle dependence of our proposed absorber, and it exhibits good angular polarization tolerance. Furthermore, the proposed “ancient coin”-type absorber shows great application potential as a sensor or detector in biopharmaceutical, optical imaging, and other fields due to its strong tunability and high refractive index sensitivity.

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Dynamic Control of Double Plasmon-Induced Transparencies in Aperture-Coupled Waveguide-Cavity System

Cited by 134 publications

References 40 publications

Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

Decay Rates of Plasmonic Elliptical Nanostructures via Effective Medium Theory

Based on Ultrathin PEDOT:PSS/c-Ge Solar Cells Design and Their Photoelectric Performance

A Tunable “Ancient Coin”-Type Perfect Absorber with High Refractive Index Sensitivity and Good Angular Polarization Tolerance

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