Localized electromagnetic excitation in the form of toroidal dipoles has recently been observed in metamaterial systems. The origin of the toroidal dipole lies in the currents flowing on the surface of a torus. Thus, the exotic toroidal excitations play an important role in determining the optical ...
Singh, “Sensing with toroidal metamaterial,” Appl. Phys. Lett., vol. 110, p. 121108, 2017, https://doi.org/10.1063/1.4978672.Search in Google Scholar [39] K. Koshelev, S. Lepeshov, M. Liu, A. Bogdanov, and Y. Kivshar, “Asymmetric metasurfaces with high-Q ...
It is found that with the increase of the liquid relative dielectric permittivity, the resonant frequency always shifts to the decreasing direction. This work may be helpful for exploring the sensing application of the cylindrical metamaterial array wih toroidal modes.Yue CHENG...
S. Multifunctional composites: a metamaterial perspective. Multifunct. Mater. 2, 043001 (2019). Article CAS Google Scholar Lalegani, Z. et al. Targeted dielectric coating of silver nanoparticles with silica to manipulate optical properties for metasurface applications. Mater. Chem. Phys. 287, ...
Various plasmonic sensors have been investigated, such as stub [14], metal-dielectric nanophotonic cavity [15], split ring metasensor [16,17], toroidal metamaterial [18], dimer [19], trimer [20], asymmetric and terminal closed T-shaped [21], and H-shaped [22] structures and so on. In...
A reconfigurable reflective metasurface with integrated sensing capabilities can benefit wireless communications, wireless power transfer, RF sensing, and smart sensors. Proposed design and operation Metamaterial element design Proposed hybrid RIS hardware design with integrated sensing capability. ...
Ultrasensitive terahertz sensing with high-Q toroidal dipole resonance governed by bound states in the continuum in all-dielectric metasurface Nanophotonics, 10 (4) (2021), pp. 1295-1307, 10.1515/nanoph-2020-0582 Google Scholar [25] T.C. Tan, Y.K. Srivastava, R.T. Ako, W. Wang, M. ...
Gupta M, Srivastava YK, Manjappa M, Singh R (2017) Sensing with toroidal metamaterial. Appl Phys Lett 110(12):121108. https://doi.org/10.1063/1.4978672 Article CAS Google Scholar Srivastava YK, Cong L, Singh R (2017) Dual-surface flexible THz fano metasensor. Appl Phys Lett 111(20)...
In addition, the proposed DNA biosensor has high sensitivity of 1231.09 nm RIU−1, and Q = 1140 with a detection limit of 5.995 × 10−6 RIU. Therefore, the reported sensors have advantages in terms of high sensitivity and high quality factor with simple structure. This is ...
Superior terahertz sensing metasurface based on ultrahigh-Q toroidal dipole governed by quasi-BIC Sharp quasi-bound states in the continuum (quasi-BIC) in all-dielectric metasurfaces with high quality-factor (Q-factor) resonance provide an important pla... J Zhao,L Zhang,Y Li - EPL 被引量:...