Double-Ring Resonator Plasmonic Refractive Index Sensor Utilizing Dual-Band Unidirectional Reflectionless Propagation Effect

Amoosoltani, Narjes; Mehrabi, Kolsoom; Zarifkar, Abbas; Farmani, Ali; Yasrebi, Navid

doi:10.1007/s11468-021-01395-9

Cited by 40 publications

(19 citation statements)

References 37 publications

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“… 22 2021 Plasmonic Lorentzian 592 304.06 550 282.5 Ref. 23 2021 Plasmonic Lorentzian 988.8 132.8 1000 133 Ref. 42 2021 Plasmonic Lorentzian 1056.4 69.91 1050 69.5 Ref.…”

Section: Discussion and Comparisonsmentioning

confidence: 99%

“…As seen in this table, the topology type of some published works is plasmonic structure 22 , 23 , 42 , 44 , 72 – 74 and the topology type of some others is PC 75 . As discussed before, each of these topologies has some advantages and some disadvantages.…”

Section: Discussion and Comparisonsmentioning

confidence: 99%

“…Therefore, different metal–insulator–metal (MIM) plasmonic devices have been designed so far. Such devices include plasmonic filters 16 – 18 , splitters 19 , 20 , sensors 21 – 23 , demultiplexers 24 , 25 , slow light waveguides 26 , 27 , switches 28 – 31 , logic gates 32 , 33 , converters 34 , modulators 35 , 36 and so on. It is worth mentioning that the main disadvantage of plasmonic structures 37 , 38 compared to PCs 39 , 40 is their higher absorption value which results in lower Q-factor.…”

Section: Introductionmentioning

confidence: 99%

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Optical biosensors using plasmonic and photonic crystal band-gap structures for the detection of basal cell cancer

Khani

Hayati

2022

Sci Rep

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One of the most interesting topics in bio-optics is measuring the refractive index of tissues. Accordingly, two novel optical biosensor configurations for cancer cell detections have been proposed in this paper. These structures are composed of one-dimensional photonic crystal (PC) lattices coupled to two metal–insulator–metal (MIM) plasmonic waveguides. Also, the tapering method is used to improve the matching between the MIM plasmonic waveguides and PC structure in the second proposed topology. The PC lattices at the central part of the structures generate photonic bandgaps (PBGs) with sharp edges in the transmission spectra of the biosensors. These sharp edges are suitable candidates for sensing applications. On the other hand, the long distance between two PBG edges causes that when the low PBG edge is used for sensing mechanism, it does not have an overlapping with the high PBG edge by changing the refractive index of the analyte. Therefore, the proposed biosensors can be used for a wide wavelength range. The maximum obtained sensitivities and FOM values of the designed biosensors are equal to 718.6, 714.3 nm/RIU, and 156.217, 60.1 RIU−1, respectively. The metal and insulator materials which are used in the designed structures are silver, air, and GaAs, respectively. The finite-difference time-domain (FDTD) method is used for the numerical investigation of the proposed structures. Furthermore, the initial structure of the proposed biosensors is analyzed using the transmission line method to verify the FDTD simulations. The attractive and simple topologies of the proposed biosensors and their high sensitivities make them suitable candidates for biosensing applications.

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“… 22 2021 Plasmonic Lorentzian 592 304.06 550 282.5 Ref. 23 2021 Plasmonic Lorentzian 988.8 132.8 1000 133 Ref. 42 2021 Plasmonic Lorentzian 1056.4 69.91 1050 69.5 Ref.…”

Section: Discussion and Comparisonsmentioning

confidence: 99%

Section: Discussion and Comparisonsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optical biosensors using plasmonic and photonic crystal band-gap structures for the detection of basal cell cancer

Khani

Hayati

2022

Sci Rep

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“…SPPs can facilitate light-matter interaction between dielectric medium and metal nanoparticles (MNPs) since they can configure light into the nanometer domain and overcome the diffraction limit [10][11][12][13][14][15]. SPPs based on metalinsulator-metal (MIM) bus waveguide (WG) combined with single or several nanocavities (or resonators) has a myriad of considerations due to its unique optical properties, including low losses, long propagation distance, easy fabrication, and compatible integrated optical circuits (IOCs) [16][17][18][19][20]. Plasmonic MIM WGs combined with resonators have many applications in nanophotonics fields [21][22][23], such as optical switches [24], beam splitters [25,26], perfect absorbers [27][28][29], optical filters [30][31][32], and plasmonic sensor [33][34][35] because of their robust light localization and confinement and light tunability at a subwavelength regime and excellent performance of sensitivity to the variation of ambient materials.…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh Sensitivity of a Plasmonic Pressure Sensor with a Compact Size

et al. 2021

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This study proposes a compact plasmonic metal-insulator-metal pressure sensor comprising a bus waveguide and a resonator, including one horizontal slot and several stubs. We calculate the transmittance spectrum and the electromagnetic field distribution using the finite element method. When the resonator’s top layer undergoes pressure, the resonance wavelength redshifts with increasing deformation, and their relation is nearly linear. The designed pressure sensor possesses the merits of ultrahigh sensitivity, multiple modes, and a simple structure. The maximum sensitivity and resonance wavelength shift can achieve 592.44 nm/MPa and 364 nm, respectively, which are the highest values to our knowledge. The obtained sensitivity shows 23.32 times compared to the highest one reported in the literature. The modeled design paves a promising path for applications in the nanophotonic field.

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“…Among them, metal-insulator-metal waveguide (MIMW) structures have been proposed and investigated widely due to their low loss, strong field confinement, long propagation distance, and easy fabrication [11][12]. Plasmonic sensors based on MIMW structure have been investigated by many groups, for example, MIM waveguide coupled with an elliptical cavity and a half elliptical groove to produce Fano sensor [13], MIM waveguide coupled with double-ring resonator for refractive index sensing [14].…”

Section: Introductionmentioning

confidence: 99%

Super High Sensitivity Plasmonic Temperature Sensor Based on Square Ring Shape Resonator with Nanorods Defects

Pan

Shi

Zheng

et al. 2021

Preprint

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A super high sensitivity plasmonic temperature sensor via a metal-insulator-metal (MIM) waveguide system is presented in this paper, the waveguide structure is composed of a square ring shape resonator with nanorods defects and a nanodisk resonator. Finite difference-time domain method (FDTD) is used to study the structure’s transmission characteristics and electromagnetic field distributions. Results show that sensitivity will be increased due to the gap plasmonic in the nanorod defect, the nanodisk resonator provides more plasmonic resonant modes for sensing. The positions and intensities of plasmonic resonant modes can be tuned by the radius of nanorod defects and coupling distance. The calculated maximum refractive index and FOM are and 3500, respectively. Compared to the structure without nanorods, the sensitivity is enhanced 33% for mode 1. For temperature sensing, the proposed structure possesses a relatively high sensitivity of about . The proposed plasmonic structure provides a basis for designing high sensitivity nano-biosensing, refractive index sensing.

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Double-Ring Resonator Plasmonic Refractive Index Sensor Utilizing Dual-Band Unidirectional Reflectionless Propagation Effect

Cited by 40 publications

References 37 publications

Optical biosensors using plasmonic and photonic crystal band-gap structures for the detection of basal cell cancer

Optical biosensors using plasmonic and photonic crystal band-gap structures for the detection of basal cell cancer

Ultrahigh Sensitivity of a Plasmonic Pressure Sensor with a Compact Size

Super High Sensitivity Plasmonic Temperature Sensor Based on Square Ring Shape Resonator with Nanorods Defects

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