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

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

925
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
925
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

191
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...
191
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

1.2K
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...
1.2K
Concept of Resonance and its Characteristics01:19

Concept of Resonance and its Characteristics

5.0K
If a driven oscillator needs to resonate at a specific frequency, then very light damping is required. An example of light damping includes playing piano strings and many other musical instruments. Conversely, to achieve small-amplitude oscillations as in a car's suspension system, heavy damping is required. Heavy damping reduces the amplitude, but the tradeoff is that the system responds at more frequencies. Speed bumps and gravel roads prove that even a car's suspension system is not...
5.0K
Sound Waves: Resonance01:14

Sound Waves: Resonance

2.5K
Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
2.5K
Design Example: Underdamped Parallel RLC Circuit01:17

Design Example: Underdamped Parallel RLC Circuit

268
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
268

You might also read

Related Articles

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

Sort by
Same author

The trajectory of health behavior in Chinese rural older adults with chronic diseases: A qualitative study.

Geriatric nursing (New York, N.Y.)·2026
Same author

Correction: Wang et al. Temperature Effects in Packaged RF MEMS Switches with Optimized Gold Electroplating Process. <i>Micromachines</i> 2024, <i>15</i>, 1085.

Micromachines·2025
Same author

Validity and usability for digital cognitive assessment tools to screen for mild cognitive impairment: a randomized crossover trial.

Journal of neuroengineering and rehabilitation·2025
Same author

A Circularly Polarized Broadband Composite Spiral Antenna for Ground Penetrating Radar.

Sensors (Basel, Switzerland)·2025
Same author

Exploring the Discontinuous Usage Behavior of Digital Cognitive Training Among Older Adults With Mild Cognitive Impairment and Their Family Members: Qualitative Study Using the Extended Model of IT Continuance.

Journal of medical Internet research·2025
Same author

A Compact Wideband Vivaldi Antenna for Non-Invasive Glucose Monitoring.

Micromachines·2024

Related Experiment Video

Updated: Jun 9, 2025

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.3K

Strain-Induced Frequency Splitting in PT Symmetric Coupled Silicon Resonators.

Lifeng Wang1, Shangyang Zhang1, Qunce Yuan1

  • 1Key Laboratory of MEMS of the Ministry of Education, School of Electronic Science & Engineering, Southeast University, Nanjing 210096, China.

Micromachines
|October 26, 2024
PubMed
Summary

This study demonstrates strain-induced frequency splitting in parity-time (PT) symmetric-coupled silicon resonators. The PT system shows enhanced sensitivity to strain near the exceptional point, validated through fabrication and experiment.

Keywords:
PT symmetrycoupled resonatorsfrequency splittingsilicon resonatorsstrain-induced

More Related Videos

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.0K
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

6.1K

Related Experiment Videos

Last Updated: Jun 9, 2025

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.3K
Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.0K
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

6.1K

Area of Science:

  • Photonics and optical engineering
  • Non-Hermitian physics
  • Materials science

Background:

  • Parity-time (PT) symmetry in coupled resonators offers unique non-Hermitian properties.
  • Silicon photonics provides a robust platform for realizing complex optical systems.

Purpose of the Study:

  • To investigate strain-induced frequency splitting in PT symmetric-coupled silicon resonators.
  • To explore the enhanced sensitivity of PT systems to strain near exceptional points.

Main Methods:

  • Theoretical derivation and numerical simulation of frequency splitting under strain.
  • Design of a feedback circuit for negative damping to achieve PT symmetry.
  • Fabrication of silicon-on-insulator (SOI) resonator chips.
  • Experimental construction and testing of PT-symmetric-coupled silicon resonators.

Main Results:

  • Frequency splitting in PT symmetric-coupled silicon resonators due to strain was theoretically predicted and simulated.
  • The PT system exhibits heightened sensitivity to strain perturbations near the exceptional point (EP).
  • Experimental fabrication and successful demonstration of strain-induced frequency splitting in the PT-symmetric system were achieved.

Conclusions:

  • Strain-induced frequency splitting is a viable phenomenon in PT symmetric-coupled silicon resonators.
  • The enhanced sensitivity near the EP presents opportunities for highly sensitive strain sensors.
  • The successful fabrication and experimental validation pave the way for practical applications of PT-symmetric photonic devices.