Sensing Application in Fano Resonance With T-Shape Structure

Li, Boxun; Li, Hongjian; Zeng, Lili; Zhan, Shiping; He, Zhihui; Chen, Zhiquan; Xu, Hui

doi:10.1109/jlt.2016.2572723

Cited by 34 publications

(11 citation statements)

References 29 publications

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“…In Table 1, the sensitivity and FOM of different structures are compared to those of the proposed structure. As it can be seen, the proposed structure has comparable or higher FOM than the other structures, except for [21,22]. As for the sensitivity, only the structures in [22,23] exhibit significantly better sensitivity.…”

mentioning

confidence: 83%

“…One of the SPP guiding structures are metal-insulator-metal (MIM) slabs, which are very suitable for highly integrated photonic circuits and they offer a very good trade-off between light confinement and energy loss [4]. Therefore, various components based on MIM waveguides have been proposed including filters [5][6][7][8][9][10][11][12][13][14], splitters [15], demultiplexers [16], power dividers [17], and sensors [18][19][20][21][22][23][24][25][26].…”

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confidence: 99%

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High-Resolution Plasmonic Filter and Refractive Index Sensor Based on Perturbed Square Cavity with Slits and Orthogonal Feeding Scheme

Janković

2018

Plasmonics

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We present a plasmonic bandpass filter and refractive index sensor based on perturbed square cavity resonator with slits, which is fed by orthogonally oriented feeding waveguides. The slits provide size reduction in comparison to conventional square cavities and better coupling to the waveguides, while the perturbation and orthogonal feeding scheme provide a pair of transmission zeros in the response of the structure. In that manner, a bandpass filter with high transmission, narrow bandwidth, and excellent selectivity can be readily designed. Moreover, with a slight modification of the structure, a very sharp Fano-like response can be obtained and employed for refractive index sensing with high sensitivity and figure of merit.

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mentioning

confidence: 83%

mentioning

confidence: 99%

High-Resolution Plasmonic Filter and Refractive Index Sensor Based on Perturbed Square Cavity with Slits and Orthogonal Feeding Scheme

Janković

2018

Plasmonics

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“…Various kinds of plasmonic devices containing MDM waveguides have been investigated [23–27]. MDM waveguide–cavity coupled systems have been reported such as stub cavities [24], side-coupled rectangular cavities [25], T-shape cavities [26] and ring–groove joint cavities [27].…”

Section: Introductionmentioning

confidence: 99%

Magnetic-field sensor with self-reference characteristic based on a magnetic fluid and independent plasmonic dual resonances

Ren

et al. 2019

Beilstein J. Nanotechnol.

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A magnetic-field sensor with self-reference characteristic based on metal–dielectric–metal (MDM) plasmonic waveguides and a magnetic fluid (MF) is proposed and theoretically investigated. Independent dual resonances are supported by the coupled resonator–waveguide system. The physical mechanisms of dual resonances are analyzed by the temporal coupled-mode theory. The transmission response to an external magnetic field is explored by using the remarkable tunability of the refractive index of the MF. Based on the different dependence of two resonances on the external field, a magnetic-field sensor with self-reference characteristic is achieved. The magnetic-field nanosensor shows an excellent performance with a high sensitivity of 27 pm/Oe, i.e., 270 pm/mT. The proposed sensor takes advantage of the refractive-index tunability of the MF and the compactness of the MDM waveguide structure. This research may open new opportunities to design nanoscale magnetic sensors with good performance.

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“…Fano resonance can be attained in coupled optical resonator cavity ground on the features of MIM waveguide, which has been experimentally proved in recent researches. Zhan et al reported the sensing characteristic based on plasmon induced transparency in nano cavity coupled metal-dielectric-metal waveguide [5], Li et al discussed the sensing application in fano resonance with T-shape structure [6]. Wen et al proposed ultra-high figure of merits based on MIM waveguides in fano resonance [7].…”

Section: Introductionmentioning

confidence: 99%

Sensing analysis based on fano resonance in arch bridge structure

Dong

Sun

et al. 2018

J. Phys. Commun.

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An arch bridge structure, comprising of a semiring cavity resonator coupled with bus waveguide, has been investigated numerically and theoretically. Due to the interaction of broad bright state and the narrow dark state caused by the semiring cavity and bus waveguide, respectively, fano resonance can be accrued in transmission spectra which possess a sheer asymmetrical profile that can be adjusted by changing the parameters of the structure with the finite-difference time-domain (FDTD) method. A plasmonic nanosensor is devised based on fano resonance in a metal-insulator-metal (MIM) waveguide system, which has a sensitivity of 1500 nm/RIU as well as a figure of merit (FOM) of 5500. Our findings can provide the guidance for fundermental research of nanosensor in highly integrated optical circuits.

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Sensing Application in Fano Resonance With T-Shape Structure

Cited by 34 publications

References 29 publications

High-Resolution Plasmonic Filter and Refractive Index Sensor Based on Perturbed Square Cavity with Slits and Orthogonal Feeding Scheme

High-Resolution Plasmonic Filter and Refractive Index Sensor Based on Perturbed Square Cavity with Slits and Orthogonal Feeding Scheme

Magnetic-field sensor with self-reference characteristic based on a magnetic fluid and independent plasmonic dual resonances

Sensing analysis based on fano resonance in arch bridge structure

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