Plasmonic Narrowband Filter Based on an Equilateral Triangular Resonator with a Silver Bar

Zhang, Jingyu; Feng, Hengli; Gao, Yang

doi:10.3390/photonics8070244

Cited by 16 publications

(8 citation statements)

References 47 publications

(47 reference statements)

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“…The Fano resonance peaks are all red-shifted with the increase of n. According to Formula (5), as n increases, the n eff of the intracavity medium also increases. Therefore, the resonance wavelength After optimizing the parameters, the optimal sensitivity S is 1300 nm RIU −1 , which is higher than previously reported (917 nm RIU −1 [14], 625 nm RIU −1 [46], 1250 nm RIU −1 [47] 1053 nm RIU −1 [48], 1290.2 nm RIU −1 [49]). FOM * reached a maximum of 191.262(Shown in figure 13), which is higher than previously reported(180 [14], 156.25 [21], 138.9 [47]).…”

Section: Resultsmentioning

confidence: 59%

A dual-purpose sensor with a sawtooth U-shaped cavity and a rectangle-shaped cavity in a MIM waveguide structure

et al. 2023

Phys. Scr.

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To improve the performance of subwavelength refractive index and temperature sensors, this paper proposes a subwavelength metal-insulator-metal (MIM) waveguide structure consisting of a sawtooth U-shaped cavity and a rectangular cavity based on surface plasmon polaritons. The transmission spectrum of the system is simulated using the finite element method (FEM) and verified with multi-mode interference coupled-mode theory (MICMT). The results demonstrate excellent sensing characteristics for the system, with a refractive index sensitivity of 1300 nm/RIU, a figure of merit (FOM*) of 191.262, and a temperature sensitivity of 0.525 nm/℃. This indicates that the nano-plasma system is highly significant in refractive index and temperature sensing.

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Section: Resultsmentioning

confidence: 59%

A dual-purpose sensor with a sawtooth U-shaped cavity and a rectangle-shaped cavity in a MIM waveguide structure

et al. 2023

Phys. Scr.

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“…One of the ultimate goals in the quantum source community is to realize electrically driven on‐chip quantum circuits. [ 311 ] Electrically generated on‐chip single photons might be routed, split, outcoupled to free‐space, and coupled to desired direction by integrating with on‐chip components such as slot antennas, T‐splitters, concave grooves, and directional couplers. Therefore, on‐chip quantum circuits may open the door to true information processing systems with quantum technology.…”

Section: Discussionmentioning

confidence: 99%

Planar Optical Cavities Hybridized with Low‐Dimensional Light‐Emitting Materials

et al. 2022

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Figure 6. a) Schematic and optical image of a nanolaser that consists of Si PC and monolayer Molybdenum telluride. b) i) The illustration of the upconversion nanolaser that consists of UCNPs coated on the plasmonic lattice. ii) The diagram exhibits the energy transfer mechanism in UCNP. c) Perovskite-based lasing device. Left upper illustration is the near-field profile representing third-order Mie resonance. SEM image shows the CsPbBr 3cube with a size of 310 nm. In the emission spectrum, an extremely sharp peak that stands for lasing action is observed. Inset represents the interference pattern that appears in the optical image of the perovskite cube. d) Perovskite-based BIC lasing device. Schematic shows the vortex lasing system composed of hole patterned perovskite film and a blue laser for pumping. i) The dispersion relation is photonic bands of the perovskite hole pattern in the direction of ΓX and ΓM around 550 nm. ii) The donut-shaped far-field profile and self-interference pattern. The white arrows denote the fork shape which means the vortex beam nature. (a) Reproduced with permission. [198] Copyright 2017, Springer Nature. (b) Reproduced with permission. [156]

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“…[ 121–125 ] Plasmonic optics has attracted significant attention in the last two decades due to its unique properties of extremely small wavelength and ultrahigh electromagnetic field localization. It leads optical research into the nanometer scale including photonics integration circuit, [ 126–129 ] single‐molecule sensor, [ 130–132 ] super‐resolution imaging, [ 133–135 ] and massive data storage, [ 136–139 ] etc. As a wavelength dependent effect, surface plasmon resonance (SPR) based coloring technique has attracted extensive interests in recent years due to the rich physics and ultra‐small structure size as shown in Figures 3b–d and 4.…”

Section: Nanophotonic Spectral Routingmentioning

confidence: 99%

Nanophotonic Color Routing

et al. 2021

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Similarly, refraction can sort out light in space following the Fresnel equation and created the spectrometer hundreds of years ago. [12,35] The interference of light is the main working mechanism of multilayer thin film filters. [36,37] Optical properties of microstructures (e.g., gratings) and device performance are usually sizedependent and thus bulky methods in the case of photovoltaics or display are not applicable for imaging, where the dimensions of the image sensor pixels are orders of magnitude smaller than solar cells and display units as shown in Figure 1b,d. It is not only interesting in science to study the fundamental physics in dispersive light manipulating in a scale down to a micron or sub-micron, but also extremely important to develop advanced spectral routing techniques with high-efficiency utilization of the full spectrum for applications such as high-resolution color imaging, [10,38] hyperspectral imaging, [41][42][43] on-chip spectroscopy, [13,[44][45][46][47][48] multi-channel data storage, [49][50][51] color computer-generated hologram, [52][53][54] light fidelity, [55] etc.Recently, nanophotonic spectral engineering technologies have being received tremendous attention and made significant progress. [13,[56][57][58][59][60][61][62] Plasmonic structures demonstrated a color encoding resolution as high as 100 000 dpi. [59] All dielectric metasurfaces presented structural colors with a gamut area of 181.5% of sRGB. [60] Colloid quantum dots were used to form a filter array for an on-chip spectrometer. [13] Sub-10 nm plasmonic resonance linewidth was demonstrated for optical sensing. [61] Reconfigurable spectral response was demonstrated by a combination of chemical and physical colors. [62] There are a number of published reviews on the topic of structural color techniques, which focus on the spectral filtering scheme. [63][64][65][66][67] The key issue of all these spectral filtering techniques is the same to pick out a certain wavelength band from a broadband light source, where efficiency and crosstalk are the main performance parameters. The color routing efficiency is associated with the brightness. The higher the efficiency, the brighter the image. For example, in the case of imaging and display, it is determined by the ratio of the received optical power in the target wavelength band over the whole incident power. Thus, in the case of a usual Bayer array with blue (R), green (G), blue (B) filters, [68] the maximum efficiency of the R pixel is considered to be only 25% (without consideration of unwanted crosstalk) because the light incident to other three pixels will not contribute to the R pixel. The spectral crosstalk is associated with the color purity. The lower the spectral crosstalk, the higher the Recent advances in low-dimensional materials and nanofabrication technologies have stimulated many breakthroughs in the field of nanophotonics such as metamaterials and plasmonics that provide efficient ways of light manipulation at a subwavelength scale. The representative structure-...

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Plasmonic Narrowband Filter Based on an Equilateral Triangular Resonator with a Silver Bar

Cited by 16 publications

References 47 publications

A dual-purpose sensor with a sawtooth U-shaped cavity and a rectangle-shaped cavity in a MIM waveguide structure

A dual-purpose sensor with a sawtooth U-shaped cavity and a rectangle-shaped cavity in a MIM waveguide structure

Planar Optical Cavities Hybridized with Low‐Dimensional Light‐Emitting Materials

Nanophotonic Color Routing

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