Jove
Visualize
Contact Us

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:

You might also read

Related Articles

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

Sort by
Same author

Modernizing Pesticide Risk Assessment: Technical Advancements as the Path toward Global Food Security.

Journal of agricultural and food chemistry·2026
Same author

Sperm-female interactions in the pig oviduct, a key for insemination success?

The Journal of reproduction and development·2026
Same author

Designed Water Capture in Terpene Synthase Catalysis.

Chembiochem : a European journal of chemical biology·2026
Same author

Microbial Metabolism and Disease Virulence Changes Across Day and Night in Coral Black Band Disease Lesions.

Environmental microbiology·2026
Same author

Major transitions in early coral development: novel insights enabled by visualisation of a comprehensive transcriptomic dataset for Acropora millepora.

BMC biology·2026
Same author

U.S. Leadership in Food Safety: A Blueprint for Global Food Security through Pesticide Science.

Journal of agricultural and food chemistry·2025
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 Experiment Video

Updated: May 23, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Current and frequency modulation characteristics for continuous-wave quantum cascade lasers at 9.06 μm.

Lei Tao1, Kang Sun, David J Miller

  • 1Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, USA.

Optics Letters
|April 20, 2012
PubMed
Summary

We characterized current-induced frequency modulation (FM) in quantum cascade lasers (QCLs). The frequency tuning rate and phase shift were measured, showing dependence on modulation frequency and amplitude for water vapor detection.

More Related Videos

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Related Experiment Videos

Last Updated: May 23, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 11, 2013

Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Spectroscopy

Background:

  • Quantum cascade lasers (QCLs) are semiconductor lasers emitting in the mid-infrared.
  • Frequency modulation (FM) is a technique used to encode information onto a carrier wave.
  • Understanding current-induced FM in QCLs is crucial for developing advanced spectroscopic applications.

Purpose of the Study:

  • To investigate the characteristics of current-induced frequency modulation (FM) in continuous-wave quantum cascade lasers (QCLs) at 9.06 μm.
  • To measure the frequency tuning rate and phase shift between intensity modulation and FM.
  • To validate the findings with a numerical model for ambient water vapor detection.

Main Methods:

  • Utilized two continuous-wave quantum cascade lasers (QCLs) operating at 9.06 μm.
  • Measured frequency tuning rate and phase shift across modulation frequencies from 10 Hz to 200 kHz.
  • Employed wavelength modulation spectroscopy for ambient water vapor detection.

Main Results:

  • The frequency tuning rate of the QCLs was found to be dependent on both modulation frequency and amplitude.
  • Phase shift between intensity modulation and FM was characterized.
  • Successful detection of ambient water vapor using the tested QCL was achieved.

Conclusions:

  • Current-induced FM in QCLs exhibits complex behavior influenced by modulation parameters.
  • The characterized FM properties are suitable for spectroscopic applications like gas sensing.
  • The study validates the use of QCLs for precise environmental monitoring.