Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied first.
Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
Resonance and Hybrid Structures02:16

Resonance and Hybrid Structures

According to the theory of resonance, if two or more Lewis structures with the same arrangement of atoms can be written for a molecule, ion, or radical, the actual distribution of electrons is an average of that shown by the various Lewis structures.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.
¹H NMR Signal Multiplicity: Splitting Patterns01:13

¹H NMR Signal Multiplicity: Splitting Patterns

When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Implementing carotid ultrasound and Holter monitoring through telemedicine-based training in a stroke unit in Lusaka, Zambia.

Neurological research and practice·2025
Same author

Is chronological age predictable on panoramic images using the Demirjian method on third molars? Insights from a Turkish population-based study.

Medicina oral, patologia oral y cirugia bucal·2025
Same author

SYNCHRONOUS ONCOCYTIC CARCINOMA, MEDULLARY CARCINOMA AND PAPILLARY MICROCARCINOMA OF THYROID.

Acta endocrinologica (Bucharest, Romania : 2005)·2025
Same author

Prediction of mortality and the development of critical illness in the course of COVID-19 with tertiary hospital data: vaccines? Critical illness scores? Mortality scores?

European review for medical and pharmacological sciences·2023
Same author

Comparison of 2017 ILAE and Semiological seizure classifications before and after video-EEG monitoring in childhood epilepsy.

European review for medical and pharmacological sciences·2022
Same author

Electrical status epilepticus during sleep (ESES) in benign childhood epilepsy with Centrotemporal spikes (BCECTS): insights into predictive factors, and clinical and EEG outcomes.

European review for medical and pharmacological sciences·2022

Related Experiment Video

Updated: Jun 28, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Multi-gap individual and coupled split-ring resonator structures.

R S Penciu1, K Aydin, M Kafesaki

  • 1Foundation for Research and Technology, Hellas, Institute of Electronic Structure and Laser, Heraklion, Crete, Greece.

Optics Express
|October 30, 2008
PubMed
Summary
This summary is machine-generated.

This study investigates split ring resonators (SRRs) with varying gaps. Coupling SRRs alters magnetic resonance frequencies and splits resonances, depending on coupling type and direction.

More Related Videos

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Related Experiment Videos

Last Updated: Jun 28, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

Area of Science:

  • Electromagnetics
  • Metamaterials
  • Nanophotonics

Background:

  • Split ring resonators (SRRs) are fundamental metamaterial components.
  • Understanding SRR behavior is crucial for designing advanced electromagnetic devices.

Purpose of the Study:

  • To systematically study the electromagnetic behavior of individual and coupled split ring resonators.
  • To analyze the influence of coupling on magnetic resonance frequency, field, and current distributions.

Main Methods:

  • Numerical simulations of SRRs with one, two, and four gaps.
  • Experimental validation of simulation results.
  • Analysis of SRR interactions in coupled pairs.

Main Results:

  • Coupling SRRs along the E direction shifts resonance frequency based on capacitive or inductive coupling.
  • Strong coupling along the propagation direction splits single resonances into two.
  • Observed peculiar magnetic field and current distributions in coupled SRRs.

Conclusions:

  • SRR coupling significantly impacts electromagnetic properties.
  • The findings provide insights for tuning metamaterial responses.
  • This research contributes to the design of novel electromagnetic devices.