Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Sound Waves: Resonance

Sound Waves: Resonance

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...

Forced Oscillations

Forced Oscillations

When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.

Passive Filters

Passive Filters

Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff frequency...

Damped Oscillations

Damped Oscillations

In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...

Concept of Resonance and its Characteristics

Concept of Resonance and its Characteristics

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 immune...

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations

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 stretching vibration...

You might also read

Related Articles

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

Sort by

Same author

Determination of mode strengths in channel waveguide from the complex electric field.

Scientific reports·2024

Same author

Reduction formula for cross-spectral purity of nonstationary light fields.

Journal of the Optical Society of America. A, Optics, image science, and vision·2023

Same author

Efficacy and safety of <i>Lacticaseibacillus paracasei</i> Lpc-37® in students facing examination stress: A randomized, triple-blind, placebo-controlled clinical trial (the ChillEx study).

Brain, behavior, & immunity - health·2023

Same author

Feasibility of neural network metamodels for emulation and sensitivity analysis of radionuclide transport models.

Scientific reports·2023

Same author

Measurement of spatial coherence of light [Invited].

Journal of the Optical Society of America. A, Optics, image science, and vision·2022

Same author

On the inclusion of forest exposure pathways into a stylized lake-farm scenario in a geological repository safety analysis.

Journal of environmental radioactivity·2022

Search research articles

Related Experiment Video

Updated: Jun 23, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Pulse deformations at guided-mode resonance filters.

Tuomas Vallius, Pasi Vahimaa, Jari Turunen

|May 20, 2009

Summary

A short light pulse interacting with periodic dielectric materials dramatically alters its spatial and temporal properties. Reflected and transmitted light pulses spread laterally and decompress temporally due to resonant grating effects.

Area of Science:

Optics and Photonics
Materials Science

Background:

Periodic dielectric structures are crucial in optical devices.
Understanding light-matter interactions in such materials is key for advanced photonics.

Purpose of the Study:

To investigate the effects of a short light pulse on a periodic dielectric waveguiding region.
To analyze the spatial and temporal transformations of light pulses.

Main Methods:

Simulating the incidence of a short light pulse on a waveguiding region.
Analyzing the reflected and transmitted pulse components.
Investigating the influence of pulse width, duration, and grating parameters.

Main Results:

Observed dramatic changes in the spatial and temporal composition of the light pulse.

More Related Videos

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Published on: May 29, 2014

Construction and Characterization of a Novel Vocal Fold Bioreactor

Construction and Characterization of a Novel Vocal Fold Bioreactor

Published on: August 1, 2014

Related Experiment Videos

Last Updated: Jun 23, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Published on: May 29, 2014

Construction and Characterization of a Novel Vocal Fold Bioreactor

Construction and Characterization of a Novel Vocal Fold Bioreactor

Published on: August 1, 2014

Demonstrated lateral spread and temporal decompression of reflected and transmitted components.

Showcased dependence on pulse characteristics and resonant grating structure.

Conclusions:

Periodic dielectric structures significantly modify light pulse characteristics.
Resonant grating effects are responsible for the observed spatial and temporal pulse alterations.
The findings have implications for optical pulse shaping and manipulation.