A plasmonic ellipse resonator possessing hybrid modes for ultracompact chipscale application

Zhang, Zhaojian; Yang, Junbo; Xu, Heng; Xu, Siyu; Han, Yunxin; He, Xin; Zhang, Jingjing; Huang, Jie; Chen, Dingbo; Xie, Wanlin

doi:10.1088/1402-4896/ab4677

Cited by 13 publications

(9 citation statements)

References 28 publications

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“…Racetrack resonator possesses characteristics of both rectangle and disk cavity. A rectangle resonator can support Fabry-Perot modes FPMs, and a disk resonator can have whispering-gallery modes WGMs [40]. Therefore, such a racetrack resonator possesses a hybrid characteristic of both rectangle and disk resonators via changing parameter X of the ellipse, and the resonant wavelengths of FPMs and WGMs can be independently tuned and close to each other.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Refractive Index Sensor Mim Based Waveguide Coupled With a Slotted Side Resonator

Achi¹,

Hocini²,

Salah³

et al. 2020

PIER M

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In this paper, a plasmonic sensor based on a metal-insulator-metal (MIM) waveguide with a slotted side-coupled racetrack cavity is proposed. The transmission characteristics of the cavity are analyzed theoretically, and the improvements of performance for the racetrack cavity structure compared to a single disk cavity are studied. The influence of structural parameters on the transmission spectra and sensing performances is investigated thoroughly. The achieved sensitivity for the first mode was S = 959 nm/RIU and S = 2380 nm/RIU for the second one. Its corresponding sensing resolution is 1.04 × 10 −5 RIU for mode 1 and 4.20 × 10 −6 RIU for mode 2, respectively, and high transmissions are achieved at the two resonant wavelengths of 898.8 nm and 1857.1 nm. The proposed plasmonic sensor is a good candidate for designing novel devices and applications, in the field of chemical and biological sensing, and also in the field of plasmonic filters, switches, etc.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Refractive Index Sensor Mim Based Waveguide Coupled With a Slotted Side Resonator

Achi¹,

Hocini²,

Salah³

et al. 2020

PIER M

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“…One such technique can be using plasmonic resonators incorporating surface plasmon polaritons (SPPs), which can couple incident light into electromagnetic modes passing through the metal-insulator surface [6,7]. This concept of SPPs has already been utilized to produce couplers [8,9], splitters [10,11], demultiplexers [12,13], sensors [14,15], switches [16,17], filters [18,19], and color filters [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…Incorporating six unequal square cavities, Butt et al [22] filtered white colors into six colors and reported a maximum sensitivity of 700 nm/RIU. Zhang et al [21] from the waveguide, where the distance between each cavity is D2. The value of the structural parameters are stated in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Refractive Index Sensor Optimized for Color Detection

Yaseer¹,

Hassan²,

Tathfif³

et al. 2021

Preprint

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In this paper, a six cavity-based metal-insulator-metal plasmonic sensor is proposed. The designed sensor can detect six primary colors in the visible wavelength. Moreover, the proposed sensor can also sense the change in the refractive index. An initial sensitivity of 648.41 nm/RIU and figure of merit of (FOM) 141.29 are found based on the transmittance profile extracted through the two-dimensional (2D) finite element method (FEM). The structural parameters are optimized to maximize the performance of the modeled device both as a color filter and a refractive index sensor. The optimized FOM, FOM* and sensitivity are recorded as 218.80, 4.771 × 10⁴, and 865.31 nm/RIU, respectively. Due to high FOM and FOM*, this sensor is expected to be utilized as a color filter in various sectors, such as medical, industrial, and forensic, where the light of a particular wavelength is mandatory.

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“…Nowadays, color filters are essential in many imaging devices, such as display units of computerized systems, digital projectors, digital photography, organic light-emitting diodes, etc. 37 , 38 . Researchers are consecutively looking for a scheme to create low-price, compact, and transmission effectual color filters to improve the traditional pigment-based printing.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. 37 , Zhang and coauthors proposed a multiband four-channel color filter employing an elliptical-shaped cavity and obtained the maximum sensitivity of 608 nm/RIU and figure of merit (FOM) of 105.02. Diest et al 38 experimentally and numerically demonstrated that arranged two slits into the waveguide and distinguished three primary colors, i.e., red, green, and blue.…”

Section: Introductionmentioning

confidence: 99%

A multichannel color filter with the functions of optical sensor and switch

Chau

Chao

Huang

et al. 2021

Sci Rep

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This paper reports a multichannel color filter with the functions of optical sensor and switch. The proposed structure comprises a metal–insulator–metal (MIM) bus waveguide side-couples to six circular cavities with different sizes for filtering ultra-violet and visible lights into individual colors in the wavelength range of 350–700 nm. We used the finite element method to analyze the electromagnetic field distributions and transmittance properties by varying the structural parameters in detail. The designed plasmonic filter takes advantage of filtering out different colors since the light-matter resonance and interference between the surface plasmon polaritons (SPPs) modes within the six cavities. Results show that the designed structure can preferentially select the desired colors and confine the SPPS modes in one of the cavities. This designed structure can filter eleven color channels with a small full width at half maximum (FWHM) ~ 2 nm. Furthermore, the maximum values of sensitivity, figure of merit, quality factor, dipping strength, and extinction ratio can achieve of 700 nm/RIU, 350 1/RIU, 349.0, 65.04%, and 174.50 dB, respectively, revealing the excellent functions of sensor performance and optical switch, and offering a chance for designing a beneficial nanophotonic device.

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A plasmonic ellipse resonator possessing hybrid modes for ultracompact chipscale application

Cited by 13 publications

References 28 publications

Refractive Index Sensor Mim Based Waveguide Coupled With a Slotted Side Resonator

Refractive Index Sensor Mim Based Waveguide Coupled With a Slotted Side Resonator

Plasmonic Refractive Index Sensor Optimized for Color Detection

A multichannel color filter with the functions of optical sensor and switch

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