scholarly journals Fano Resonances: Tunable Fano Resonance and Plasmon-Exciton Coupling in Single Au Nanotriangles on Monolayer WS2 at Room Temperature (Adv. Mater. 22/2018)

2018 ◽  
Vol 30 (22) ◽  
pp. 1870155
Author(s):  
Mingsong Wang ◽  
Alex Krasnok ◽  
Tianyi Zhang ◽  
Leonardo Scarabelli ◽  
He Liu ◽  
...  
2018 ◽  
Vol 30 (22) ◽  
pp. 1705779 ◽  
Author(s):  
Mingsong Wang ◽  
Alex Krasnok ◽  
Tianyi Zhang ◽  
Leonardo Scarabelli ◽  
He Liu ◽  
...  

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Jie Chen ◽  
Qing Zhang ◽  
Jia Shi ◽  
Shuai Zhang ◽  
Wenna Du ◽  
...  

1995 ◽  
Vol 52 (8) ◽  
pp. 5672-5674 ◽  
Author(s):  
A. W. Simonian ◽  
A. B. Sproul ◽  
Z. Shi ◽  
E. Gauja

Small ◽  
2019 ◽  
Vol 15 (31) ◽  
pp. 1970164
Author(s):  
Mingsong Wang ◽  
Zilong Wu ◽  
Alex Krasnok ◽  
Tianyi Zhang ◽  
Mingzu Liu ◽  
...  

2020 ◽  
Author(s):  
Zhihui He ◽  
Chunjiang Li ◽  
Wei Cui ◽  
Weiwei Xue ◽  
Zhenxiong Li ◽  
...  

Abstract We study dual-Fano resonances and its sensing properties in a crossed ring-shaped metasurface by use of the finite-different time-domain (FDTD) simulation. The results show that the dual-Fano resonances in the proposed crossed ring-shaped metasurface are caused by the interaction among three local surface plasmon resonances (LSPRs), and the spectra of dual-Fano resonances can be tuned by the radius of the circular ring (CR) nanostructure, the distance between the center of the two CRs in x direction, and the polarization of the incident light. Interestingly, single Fano resonance splits into dual-Fano resonances in the case of asymmetric ring structure arrangement or non-y-axis polarized incident or the distance d<120 nm. Moreover, we can also find that the refractive sensitivity in the proposed crossed ring-shaped metasurface can reach up to 1010 nm/RIU and 1300 nm/RIU at Fano resonance peak 1 and Fano resonance peak 2, respectively. These results may play an important role for designing high sensitive plasmonic sensors.


2020 ◽  
Author(s):  
Jun Zhu ◽  
Ge Wang

Abstract World is rich in unconventional oil and various alternatives to petroleum. However, conventional oil production declines so quickly that it is likely these unconventional oil resources cannot be put into production fast enough, and thus will not be compensated sufficiently. We realize detecting rapid detection of water content in heavy oil. The waveguide consists of a metal-insulator-metal (MIM) waveguide, rectangular cavity resonator, and crescent-shaped cavity resonator. The effects of the coupling distance, geometry of the crescent-shaped cavity resonator and its rotation angle, and length and width of the rectangular cavity resonator on the Fano resonance lines were numerically analyzed. Multiple Fano resonances can be produced as the rotation angle of the crescent-shaped cavity resonator is adjusted, and the sensor’s refractive index sensitivity was found to be \(935.71 \text{n}\text{m}/\text{R}\text{I}\text{U}\). By measuring the water content in heavy oil, we found that the Fano resonance lines shift toward shorter wavelengths as the volume fraction of water content increases. The detection resolution in heavy oil \(1.79\times {10}^{-9}\). The results presented here show that water content in heavy oil can be calculated using the measured change in the Fano resonance wavelength.


2022 ◽  
Author(s):  
Siti Rohimah ◽  
He Tian ◽  
Jinfang Wang ◽  
Jianfeng Chen ◽  
Jina Li ◽  
...  

Abstract A plasmonic structure of metal-insulator-metal (MIM) waveguide consisting of a single baffle waveguide and an r-shaped resonator is designed to produce Fano resonance. The finite element method uses the finite element method to analyze the transmission characteristics and magnetic field distributions of the plasmonic waveguide distributions. The simulation results exhibit two Fano resonances that can be achieved by the interference between a continuum state in the baffle waveguide and a discrete state in the r-shaped resonator. The Fano resonances can be simply tuned by changing geometrical parameters of the plasmonic structure. The value variations of geometrical parameters have different effects on sensitivity. Thus, the sensitivity of the plasmonic structure can achieve 1333 nm/RIU, with a figure of merit of 5876. The results of the designed plasmonic structure offer high sensitivity and nano-scale integration, which are beneficial to refractive index sensors, photonic devices at the chip nano-sensors, and biosensors applications.


2021 ◽  
pp. 2150244
Author(s):  
Chenyuyi Shi ◽  
Jun Peng ◽  
An Jin ◽  
Jin Leng ◽  
Xiaoyong He ◽  
...  

Based on the hybrid semiconductive InSb metamaterials (MMs), we investigated the tunable Fano resonances in the terahertz regime, including the effects of carrier concentrations of InSb layer, environment temperatures and operation frequencies. The results manifested that an obvious Fano resonance was observed by using the heterostructure of InSb bars, the peak value of Fano resonance reached more than 0.97 with a high [Formula: see text]-factor of larger than 50. By changing the carrier concentrations of InSb layer, the propagation properties of semiconductor MM structures can be effectively modulated, the amplitude modulation of Fano resonance can reach more than 80%. The results are helpful for designing novel tunable terahertz devices with high [Formula: see text]-factor, e.g. modulators, sensors and antenna.


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