4.6 Article

Independently tunable refractive index sensor based on metal-insulator-metal waveguide with key-shaped resonator and application in human blood plasma detection

Related references

Note: Only part of the references are listed.
Article Optics

Dynamically switchable multifunctional terahertz absorber based on graphene and vanadium dioxide hybrid metamaterials

Y. U. J. I. A. O. Wen et al.

Summary: A multifunctional terahertz absorber based on a hybrid configuration of vanadium dioxide (VO2) and graphene is introduced, capable of switching between ultrabroadband and double-narrowband absorption characteristics using the phase-shifting property of VO2. The absorption can be adjusted by changing the conductivity of VO2 through temperature and the Fermi energy level of graphene. The proposed absorber has potential applications in optical switching, image processing, and stealth technology.

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS (2023)

Article Optics

Metal-insulator-metal waveguide structure coupled with T-type and ring resonators for independent and tunable multiple Fano resonance and refractive index sensing

Jian Zhang et al.

Summary: This study presents a metal-insulator-metal (MIM) waveguide structure coupled with symmetric T-type resonators to achieve double Fano resonances. Moreover, an additional independent Fano resonance mode can be generated by replacing one T-type resonator with a ring resonator. The transmission spectrum and electric field distribution at resonant wavelengths are simulated using the finite difference time domain method. The formation mechanism of the Fano resonance is explained using the standing wave theory and multimode interference coupled mode theory. Sensing characteristics are studied, and the designed structure demonstrates a maximum sensitivity of 10(12) nm/RIU and a figure of merit of 5.57 x 10(4), surpassing most recently reported structures. The proposed structure holds broad application prospects in the field of nano sensing.

OPTICS COMMUNICATIONS (2023)

Article Optics

Design of a switchable bifunctional terahertz metamaterial absorber from ultra-broadband to 10-band

Yunping Qi et al.

Summary: A bifunctional absorber with hybrid graphene-vanadium dioxide (VO2) has been proposed and numerically investigated. The absorber demonstrates broadband absorption from 3.15 THz to 8.45 THz with absorptance above 90% when VO2 is in the metallic state. It also exhibits a 10-band absorber with peak absorptances above 90% when VO2 is in the insulating state. The absorber offers great potential in terahertz applications such as modulation, switching, and electromagnetic energy harvesting.

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS (2023)

Article Thermodynamics

Numerical simulation of efficient solar absorbers and thermal emitters based on multilayer nanodisk arrays

Ying Zheng et al.

Summary: In this study, a solar absorber and thermal emitter with ultra-broadband perfect absorption and high thermal radiation efficiency were designed. The absorber achieved a high absorption efficiency of 91.5% in the entire wavelength range and an average absorption efficiency of 99% in the selected range. The structure also exhibited excellent performance as a thermal emitter, with an optimal working temperature of 2000 K and a thermal radiation efficiency of 94.8%.

APPLIED THERMAL ENGINEERING (2023)

Article Physics, Multidisciplinary

Independently tunable dual resonant dip refractive index sensor based on metal-insulator-metal waveguide with Q-shaped resonant cavity

Haowen Chen et al.

Summary: A novel plasmonic resonator system is proposed, with simulation and theoretical analysis showing superior performance as a refractive index sensor, providing guidance for design and application.

CHINESE PHYSICS B (2022)

Article Physics, Multidisciplinary

A polarization-insensitive, wide-angle dual-band tunable graphene metamaterial perfect absorber with T-shaped strips and square ring

Yujiao Yuan et al.

Summary: This paper proposes a dual-band tunable metamaterial perfect absorber based on graphene. The simulation results show that the absorber exhibits absorption peaks of 99.9% at frequencies of 1.69 THz and 4.30 THz under normal incidence. At oblique incidence, the absorber maintains over 90% absorption over a wide incident angle range and is independent of polarization angles. The resonant frequencies of the absorber can be tuned by adjusting the chemical potential of graphene. The designed metamaterial perfect absorber has great potential applications in various optoelectronic devices.

PHYSICA SCRIPTA (2022)

Article Physics, Multidisciplinary

Refractive index sensing of double Fano resonance excited by nano-cube array coupled with multilayer all-dielectric film

Xiangxian Wang et al.

Summary: We propose a refractive index sensing method based on a hybrid structure of a nano-cube array and multilayer full-dielectric thin films. By optimizing the structural parameters, high quality factors of two Fano resonances are achieved, indicating extensive application prospects in the biological and chemical fields.

CHINESE PHYSICS B (2022)

Review Materials Science, Multidisciplinary

Composite structure of Au film/PMMA grating coated with Au nanocubes for SERS substrate

Xiangxian Wang et al.

Summary: This study presents composite substrates consisting of Au film/PMMA grating and Au-nanocube coatings for surface-enhanced Raman scattering (SERS). The experimental and numerical simulation results show that the substrates are highly uniform, reproducible, and physically stable, which can greatly improve the practicality of Raman measurements.

OPTICAL MATERIALS (2021)

Article Physics, Multidisciplinary

Multiple Fano resonances based on clockwork spring-shaped resonator for refractive index sensing

Jinghui Ding et al.

Summary: This paper presents a surface plasmon polarized structure composed of MIM waveguides and resonators, with the optical response simulated and theoretically calculated using FEM and MICMT. The study focuses on the asymmetry of the Fano resonance line and the transmission spectra at different refractive indexes. Sensitivity and FOM* values were measured for the cavity with different parameters, with the best performance observed under certain parameters.

PHYSICA SCRIPTA (2021)

Article Optics

Fano resonance in a MIM waveguide with double symmetric rectangular stubs and its sensing characteristics

Jianfeng Chen et al.

Summary: A metal-insulator-metal type surface plasmon waveguide structure was designed in this study, showing potential applications in refractive index sensors and slow light devices. By optimizing geometric parameters, the characteristics of Fano resonance, sensitivity, and figure of merit of the structure can be adjusted.

OPTICS COMMUNICATIONS (2021)

Article Optics

Sensor based on multiple Fano resonances in MIM waveguide resonator system with silver nanorod-defect

Fei Hu et al.

Summary: The study presents triple Fano resonance through a plasmonic waveguide system, originating from narrow discrete resonances of an isosceles-triangular resonator and the broad continuous state of a nanorod-defect. Results show that Fano line shapes can be independently tuned by adjusting geometrical parameters.

OPTIK (2021)

Article Optics

Optical sensing based on multimode Fano resonances in metal-insulator-metal waveguide systems with X-shaped resonant cavities

Jina Li et al.

Summary: A plasmonic metal-insulator-metal (MIM) waveguide system with symmetrical X-shaped resonant cavities and a bus waveguide with a baffle is proposed and investigated for its Fano resonance and optical sensing properties. The system allows for up to four Fano resonances, with independent adjustments of resonance line shape and wavelength. Additional X-shaped resonant cavities in the system can enhance the performance of ultra-sharp Fano resonances and potentially improve the parallel processing capability of the system.

APPLIED OPTICS (2021)

Article Physics, Multidisciplinary

Tunable Fano resonance in plasmonic MIM waveguide with P-shaped resonator for refractive index sensing

Yunping Qi et al.

Summary: A compact plasmonic system based on a sub-wavelength metal-insulator-metal waveguide coupled with a P-shaped cavity is proposed, showing double Fano resonance peaks in the transmission spectra. The position of the resonance peaks can be adjusted by changing structural parameters, and the resonant cavity exhibits high refractive index sensitivity and figure of merit.
Article Engineering, Electrical & Electronic

Strong Magnetic Plasmon Resonance in a Simple Metasurface for High-Quality Sensing

Jing Chen et al.

Summary: A simple metasurface design with closely spaced Ag nanowires on Ag substrate is proposed for strong magnetic plasmon resonance. The magnetic field intensity and spectral linewidth of the resonance can be tuned by adjusting nanowire height and spacing. The metasurface shows high sensitivity and figure of merit, making it suitable for label-free biosensing applications.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2021)

Article Optics

Independently tunable triple Fano resonances based on MIM waveguide structure with a semi-ring cavity and its sensing characteristics

Xing Liu et al.

Summary: This paper discusses a metal-insulator-metal (MIM) waveguide structure capable of supporting triple Fano resonances, which can be independently tuned. The structure is suitable for refractive index sensing and biosensing, with high sensitivity and a linear relationship between resonance wavelength and refractive index. The MIM waveguide structure shows potential applications in optical on-chip nano-sensing.

OPTICS EXPRESS (2021)

Article Chemistry, Physical

Fano Resonance-Based Blood Plasma Monitoring and Sensing using Plasmonic Nanomatryoshka

Pankaj Pathania et al.

Summary: The study proposes a Fano resonance-based refractive index sensor for blood plasma sensing using plasmonic nanomatryoshka. By optimizing the interaction between hybridized modes in the nanomatryoshka, higher sensitivity and figure of merit are achieved, allowing for fast label-free detection of specific antibodies and their concentration in blood plasma.

PLASMONICS (2021)

Article Multidisciplinary Sciences

Reconfigurable and scalable 2,4-and 6-channel plasmonics demultiplexer utilizing symmetrical rectangular resonators containing silver nano-rod defects with FDTD method

Shiva Khani et al.

Summary: A novel method is proposed to design compact plasmonic wavelength demultiplexers, utilizing metal nano-rod defects to adjust the wavelengths of output channels. Real reconfigurability is demonstrated using a single structure, suitable for integrated optical circuits.

SCIENTIFIC REPORTS (2021)

Article Materials Science, Multidisciplinary

Ultra-broad bandgap metal-insulator-metal waveguide filter with symmetrical stubs and defects

Yuan-Fong Chou Chau et al.

RESULTS IN PHYSICS (2020)

Article Materials Science, Multidisciplinary

Tunable Fano resonance in MDM plasmonic waveguide with a T-shaped resonator coupled to ring resonator

Xingchun Yi et al.

MATERIALS RESEARCH EXPRESS (2019)

Article Engineering, Electrical & Electronic

Enhancing the Magnetic Plasmon Resonance of Three-Dimensional Optical Metamaterials via Strong Coupling for High-Sensitivity Sensing

Jing Chen et al.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2018)

Article Optics

The sensing characteristics of plasmonic waveguide with a single defect

Tiesheng Wu et al.

OPTICS COMMUNICATIONS (2014)

Article Optics

Absorption switches in metal-dielectric-metal plasmonic waveguides

Changjun Min et al.

OPTICS EXPRESS (2009)

Article Materials Science, Multidisciplinary

Plasmon slot waveguides: Towards chip-scale propagation with subwavelength-scale localization

JA Dionne et al.

PHYSICAL REVIEW B (2006)