We introduce a plasmon hybridization picture to understand the optical properties of double split-ring resonator metamaterials. The analysis is based on the calculated reflectance spectra from a finite-integration time-domain algorithm. Field distributions of the double split-ring resonators at the resonant frequencies confirm the results from the plasmon hybridization analysis. We demonstrate that the plasmon hybridization is a simple and powerful tool for understanding and designing metamaterials in the near infrared and visible regime.

Download full-text PDF

Source
http://dx.doi.org/10.1364/oe.15.012095DOI Listing

Publication Analysis

Top Keywords

double split-ring
12
plasmon hybridization
12
split-ring resonator
8
resonator metamaterials
8
resonance hybridization
4
hybridization double
4
metamaterials introduce
4
introduce plasmon
4
hybridization picture
4
picture understand
4

Similar Publications

Biosensors operating in the terahertz (THz) region are gaining substantial interest in biomedical analysis due to their significant potential for high-sensitivity trace-amount solution detection. However, progress in compact, high-sensitivity chips and methods for simple, rapid and trace-level measurements is limited by the spatial resolution of THz waves and their strong absorption in polar solvents. In this work, a compact nonlinear optical crystal (NLOC)-based reflective THz biosensor with a few arrays of asymmetrical meta-atoms was developed.

View Article and Find Full Text PDF

Terahertz (THz) trace fingerprint detection is essential for identifying the characteristic biomolecular absorption fingerprints from inherent molecular rotational and vibrational modes. Plasmonic THz resonance shows a way to enhance the recognition of biomolecular absorption fingerprint spectra. In this research, we experimentally demonstrate a broadband THz fingerprint metasensor based on a pixelated toroidal metasurface, showcasing excellent capabilities in biochemical trace detection.

View Article and Find Full Text PDF

Small-Size Eight-Element MIMO Metamaterial Antenna with High Isolation Using Modal Significance Method.

Sensors (Basel)

September 2024

CINVESTAV-IPN, Telecommunications Section, Av. IPN 2508, San Pedro Zacatenco, Ciudad de México 07360, Mexico.

This article presents a symmetrical reduced-size eight-element MIMO antenna array with high electromagnetic isolation among radiators. The array utilizes easy-to-build techniques to cover the n77 and n78 new radio (NR) bands. It is based on an octagonal double-negative metamaterial split-ring resonator (SRR), which enables a size reduction of over 50% for the radiators compared to a conventional disc monopole antenna by increasing the slow-wave factor.

View Article and Find Full Text PDF

Unveiling the Terahertz Nano-Fingerprint Spectrum of Single Artificial Metallic Resonator.

Sensors (Basel)

September 2024

Terahertz Research Center, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.

Article Synopsis
  • The study explores terahertz (THz) metasurface devices, which have unique dielectric properties and can mimic natural materials’ behaviors at THz frequencies, using a model known as the Lorentz model.
  • Traditional methods for analyzing these devices require testing numerous structural arrays, making it challenging to evaluate individual components directly.
  • By utilizing a specialized THz time-domain spectrometer, the research successfully examined the properties of single-metal double-gap split-ring resonators and antennas, revealing that their dispersion relations can resemble those of natural materials, enhancing our understanding of THz metasurfaces.
View Article and Find Full Text PDF

A nonlinear RLC resonator is investigated experimentally and numerically using bifurcation analysis. The nonlinearity is due to the parallel combination of a semiconductor rectifier diode and a fixed capacitor. The diode's junction capacitance, diffusion capacitance, and DC current-voltage relation each contribute to the nonlinearity.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!