Results 101 to 110 of about 15,569 (209)

Sensing Based on Fano-Type Resonance Response of All-Dielectric Metamaterials

Sensors, 2015
A new sensing approach utilizing Mie resonances in metamaterial arrays composed of dielectric resonators is proposed. These arrays were found to exhibit specific, extremely high-Q factor (up to 15,000) resonances at frequencies corresponding to the lower
Elena Semouchkina, Ran Duan, George Semouchkin, Ravindra Pandey   +3 more
doaj   +1 more source

Rigorous Electromagnetic Quasinormal‐Mode Method Made Easy for Users

Laser &Photonics Reviews, EarlyView.
We present a method that combines numerical techniques with accurate approximations to enable simple and ultrafast computations of the scattered field based on quasinormal modes expansions. The method is made available in the open‐source package MANlite implemented within COMSOL.
Tong Wu, Philippe Lalanne
wiley   +1 more source

Double Fano Resonances in S-Shaped Plasmonic Metasurfaces in Terahertz Region

Frontiers in Physics, 2020
We numerically and experimentally demonstrated double Fano resonances in a simple S-shaped plasmonic metasurface in the terahertz frequency range. Apart from the electric-LC resonance and electric dipole (ED) resonance, two trapped modes are excited in ...
Weihang Xu, Lingling Chen, Fangming Zhu, Jianjun Liu, Chuanshuai Sui, Zhi Hong   +5 more
doaj   +1 more source

Symmetry breaking with coupled Fano resonances

Optics Express, 2008
We describe the effect of symmetry breaking in a system with two coupled Fano resonators. A general criterion is derived and optimal parameter regions for switching are identified. By extending the single resonator behavior we show that one achieves the effect at very low input powers.
Maes, Björn, Bienstman, Peter, Baets, Roel   +2 more
openaire   +2 more sources

Ultralow‐Backscattering Induced Mode Splitting in Chipscale Valley Photonic Topological Cavities

Laser &Photonics Reviews, EarlyView.
The proposed in‐situ metrology based on mode splitting quantifies the ultralow backscattering of topological valley edge states at a single sharp corner, demonstrating near‐lossless topological transport (0.09 dB/corner) on a silicon chip. This work provides insight into the robustness of the photonic valley system and shows the great potential of ...
Kaiji Chen, Wenhao Wang, Yi Ji Tan, Zhonglei Shen, Ridong Jia, Ranjan Singh   +5 more
wiley   +1 more source

Observation of low-field Fano-Feshbach resonances in ultracold gases of dysprosium

, 2013
We report the observation of resonance-like loss in the trap population of ultracold dysprosium as a function of magnetic field, which we attribute to anisotropy-induced Fano-Feshbach resonances arising from Dy's large magnetic dipole moment and nonzero ...
Baumann, Kristian, Burdick, Nathaniel Q., Lev, Benjamin L., Lu, Mingwu   +3 more
core   +1 more source

Widening of the large-angle half-wave wall through a pair of parameter-reversal Fano resonances

Materials & Design
With the high quality (Q) factor, the Fano resonance has only been focused on sensing and switching, while its value in other fields ignored. In this manuscript, according to the Fano spectral characteristics, we have first proposed to use the Fano ...
Tiefu Li, Yuxiang Jia, Chang Ding, Xinmin Fu, Yajuan Han, Jie Yang, Zhihui Zhang, Zhaotang Liu, Cunqian Feng, Jiafu Wang   +9 more
doaj   +1 more source

Plasmonic Spectral Splitting in Ring/Rod Metasurface

Nanomaterials, 2017
We report spectral splitting behaviors based on Fano resonances in a novel simple planar metasurface composed of gold nanobars and nanorings. Multiple plasmonic modes and sharp Fano effects are achieved in a broadband transmittance spectrum by exploiting
Naseer Muhammad, Adnan Daud Khan, Zi-Lan Deng, Karim Khan, Ashish Yadav, Qiang Liu, Zhengbiao Ouyang   +6 more
doaj   +1 more source

Fano-Resonance in Hybrid Metal-Graphene Metamaterial and Its Application as Mid-Infrared Plasmonic Sensor

Micromachines, 2020
Fano resonances in nanostructures have attracted widespread research interests in the past few years for their potential applications in sensing, switching and nonlinear optics.
Jianfa Zhang, Qilin Hong, Jinglan Zou, Yuwen He, Xiaodong Yuan, Zhihong Zhu, Shiqiao Qin   +6 more
doaj   +1 more source

Spectroscopic Ellipsometry of Conducting Anisotropic Pedot thin Films

Macromolecular Rapid Communications, EarlyView.
We measure the optical response of poly[3,4‐ethylenedioxythiophene] thin films through the combination of polarized photon spectroscopies (variable‐angle ellipsometry, UV–mid‐IR reflectance and transmittance) and wide‐angle X‐ray scattering, revealing anisotropic optical response and conductivity and enabling structural modelling of chain and π‐system ...
Francesco Bisio, Katia Sparnacci, Angelo Angelini, Martina Martusciello, Daniela Di Fonzo, Davide Comoretto, Maddalena Patrini   +6 more
wiley   +1 more source