scholarly journals Scattering spectra of dielectric ring: microwave experiments

2021 ◽  
Vol 2015 (1) ◽  
pp. 012144
Author(s):  
Nikolay Solodovchenko ◽  
Mikhail Sidorenko
Keyword(s):  
Ring Resonators ◽  
Electromagnetic Properties ◽  
Microwave Range ◽  
Strong Light ◽  
Scattering Spectrum ◽  
Integrated Optical ◽  
Scattering Spectra ◽  
Resonance Character ◽  
Optical Circuits ◽  
Light Scattering Spectrum

Abstract In recent years, dielectric ring resonators (RRs) have become an essential part of integrated optical circuits. This determines the growing interest in the study of the fundamental electromagnetic properties of these objects, which is far from complete. In particular, in the literature it is difficult to find information about light scattering spectrum, which should demonstrate a strong resonance character when the probe wavelength is comparable to the geometric dimensions of the RR, taking into account its dielectric constant. In this work, we present the results of an experimental study of the electromagnetic properties of a dielectric RR in the microwave range of the spectrum. The results of numerical calculations of the scattering spectrum are also presented, which demonstrate excellent agreement with the experimental data. In addition to the expected resonance character of the spectrum, we report the effects of strong light confinement, which are associated with Fano resonances between the eigenmodes and the component of the electromagnetic field scattered by the ring.

scholarly journals Resonant light scattering from dielectric ring of rectangular cross section

2021 ◽  
Vol 2015 (1) ◽  
pp. 012145
Author(s):  
N S Solodovchenko ◽  
T Z Seidov ◽  
K B Samusev ◽  
M F Limonov
Keyword(s):  
Cross Section ◽  
Rectangular Cross Section ◽  
Polarized Light ◽  
Ring Resonators ◽  
Electromagnetic Properties ◽  
Practical Applications ◽  
Whispering Gallery ◽  
Disk Resonators ◽  
Scattering Spectrum ◽  
Light Excitation

Abstract In this paper we present the results of numerical calculations of electromagnetic properties for cylindrical ring resonators (RRs) with rectangular cross-section and a dielectric permittivity corresponding to silicon ε = 12. The calculation of the scattering spectrum (Radar Cross Section) and the field distribution of the modes were performed at in-plane polarized light excitation. The presence of four side walls in the RRs determines a richer spectrum of eigenmodes in comparison with cylindrical whispering gallery modes of disk resonators and creates more possibilities and diversity for their practical applications.

Applications of metamaterial sensors: a review

2021 ◽  
pp. 1-15
Author(s):  
Divya Prakash ◽  
Nisha Gupta
Keyword(s):  
Electromagnetic Interaction ◽  
High Sensitivity ◽  
Ring Resonators ◽  
Electromagnetic Properties ◽  
Physical Parameters ◽  
Split Ring ◽  
Split Ring Resonators ◽  
Quality Testing ◽  
Properties Of Materials ◽  
Metamaterial Absorbers

Abstract Sensors based on metamaterial absorbers are very promising when it comes to high sensitivity and quality factor, cost, and ease of fabrication. The absorbers could be used to sense physical parameters such as temperature, pressure, density as well as they could be used for determining electromagnetic properties of materials and their characterization. In this work, an attempt has been made to explore the various possible applications of these sensors. Metamaterial-based sensors are very popular for its diverse applications in areas such as biomedical, chemical industry, food quality testing, agriculture. Split-ring resonators with various shapes and topologies are the most frequently used structures where the sensing principle is based on electromagnetic interaction of the material under test with the resonator. Overcoming the design challenges using metamaterial sensors involving several constraints such as cost, compactness, reusability, ease in fabrication, and robustness is also addressed.

scholarly journals Electromagnetic properties of LaCa3Fe5Oi2in the microwave range

2016 ◽  
Vol 110 ◽  
pp. 012106
Author(s):  
V V Golenkina ◽  
S A Ghyngazov ◽  
V I Suslyaev ◽  
E Yu Korovin ◽  
G E Kuleshov ◽  
...  
Keyword(s):  
Electromagnetic Properties ◽  
Microwave Range

Three-body depolarized interaction-induced light-scattering spectrum of neon

1994 ◽  
Vol 49 (6) ◽  
pp. 4602-4609 ◽  
Author(s):  
Silvia Pestelli ◽  
Ubaldo Bafile ◽  
Lorenzo Ulivi ◽  
Marco Zoppi
Keyword(s):  
Light Scattering ◽  
Scattering Spectrum ◽  
Three Body ◽  
Light Scattering Spectrum

WAVELENGTH DEMULTIPLEXING IN METAL–INSULATOR–METAL PLASMONIC WAVEGUIDES

2014 ◽  
Vol 28 (04) ◽  
pp. 1450025 ◽  
Author(s):  
XIANKUN YAO
Keyword(s):  
Transmission Efficiency ◽  
Plasmonic Waveguides ◽  
Metal Insulator ◽  
Metal Insulator Metal ◽  
Integrated Optical ◽  
Potential Applications ◽  
Wavelength Demultiplexing ◽  
Optical Circuits ◽  
Difference Time ◽  
Mim Waveguide

In this paper, we have numerically investigated a novel kind of ultra-compact wavelength demultiplexing (WDM) in high-confined metal–insulator–metal (MIM) plasmonic waveguides. It is found that the drop transmission efficiency of the filtering cavity can be strongly enhanced by introducing a side-coupled cavity in the MIM waveguide. The theoretical analysis is verified by the finite-difference time-domain simulations. Through cascading the filtering units, a highly effective triple-wavelength demultiplexer is proposed by selecting the specific separation between the two coupled cavities of filtering units. Our results may find potential applications for the nanoscale WDM systems in highly integrated optical circuits and networks.

Sign in / Sign up

Export Citation Format

Share Document