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

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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...
Sound Waves: Resonance01:14

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...
Parallel Resonance01:23

Parallel Resonance

The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
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.
Modes of Standing Waves: II01:04

Modes of Standing Waves: II

The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end.

You might also read

Related Articles

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

Sort by
Same author

Few-cycle self-compression of GW mid-IR pulses in an anti-resonant fiber in ambient air: publisher's note.

Optics letters·2025
Same author

Few-cycle self-compression of GW mid-IR pulses in an anti-resonant fiber in ambient air.

Optics letters·2025
Same author

Fatigue fracture of a DBS extension cable: a pictorial review.

Annals of the Royal College of Surgeons of England·2025
Same author

A disease-associated gene desert directs macrophage inflammation through ETS2.

Nature·2024
Same author

Response to Letter to the Editor by Ish et al. entitled 'COVID-19 vaccine equity-the need of the hour'.

QJM : monthly journal of the Association of Physicians·2022
Same author

Advances in image enhancement for sarcoma surgery.

Cancer letters·2020

Related Experiment Video

Updated: Jun 19, 2026

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

Core-resonance capillary-fiber whispering-gallery-mode laser.

J C Knight, H S Driver, R J Hutcheon

    Optics Letters
    |October 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Researchers observed laser emission from a dye-doped solvent flowing in a silica fiber. This cylindrical whispering-gallery-mode laser relies on total internal reflection at the liquid-silica interface for feedback.

    More Related Videos

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
    12:21

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

    Published on: April 4, 2016

    Related Experiment Videos

    Last Updated: Jun 19, 2026

    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

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators
    12:21

    Stimulated Stokes and Antistokes Raman Scattering in Microspherical Whispering Gallery Mode Resonators

    Published on: April 4, 2016

    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Whispering-gallery mode (WGM) lasers are typically spherical.
    • Previous WGM lasers lacked internal refractive index discontinuities.

    Purpose of the Study:

    • To demonstrate laser emission from a cylindrical WGM laser.
    • To investigate the role of refractive index discontinuity in WGM laser operation.

    Main Methods:

    • Observation of laser emission from a dye-doped solvent in a silica capillary fiber.
    • Boundary-value computations to analyze feedback mechanisms.

    Main Results:

    • Laser emission observed at wavelengths corresponding to WGM.
    • Feedback mechanism identified as total internal reflection at the liquid-silica interface.
    • Lasing was dependent on the solvent's refractive index being higher than silica's.

    Conclusions:

    • A novel cylindrical WGM laser design utilizing a refractive index discontinuity is presented.
    • Total internal reflection at the liquid-silica interface is crucial for lasing.
    • The refractive index of the solvent must exceed that of the silica for laser operation.