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

$Interference and Diffraction$ 02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.

Propagation of Waves

Propagation of Waves

When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...

Radiation: Applications

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...

Interaction of EM Radiation with Matter: Spectroscopy

Interaction of EM Radiation with Matter: Spectroscopy

Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...

The de Broglie Wavelength

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...

Absorption of Radiation

Absorption of Radiation

The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:

You might also read

Related Articles

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

Sort by

Same author

Gene expression during CAM induction under salt stress in Mesembryanthemum: cDNA library and increased levels of mRNA for phosphoenolpyruvate carboxylase and pyruvate orthosphosphate dikinase.

Photosynthesis research·2014

Same author

Analysis of the plastid DNA in an Oenothera plastome mutant deficient in ribulose bisphosphate carboxylase.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·2013

Same author

Polypeptide pattern and enzymic character of vacuoles isolated from barley mesophyll protoplasts.

Planta·2013

Same author

Salt treatment induces frost hardiness in leaves and isolated thylakoids from spinach.

Planta·2013

Same author

Proteins from frost-hardy leaves protect thylakoids against mechanical freeze-thaw damage in vitro.

Planta·2013

Same author

Restoration of Optical Coherence Images of Living Tissue Using the CLEAN Algorithm.

Journal of biomedical optics·2012

Search research articles

Related Experiment Video

Updated: Jun 9, 2026

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Published on: August 22, 2018

Spatial localization of absorbing bodies by interfering diffusive photon-density waves.

A Knüttel, J M Schmitt, J R Knutson

|August 31, 2010

Summary

Researchers explored using destructive interference of diffusive photon-density waves to locate absorbing bodies in scattering media. This method enhances detection of deeper objects by minimizing superficial layer interference.

More Related Videos

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

Related Experiment Videos

Last Updated: Jun 9, 2026

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Published on: August 22, 2018

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

Area of Science:

Biomedical Optics
Photonics
Medical Imaging

Background:

Photon-density waves are used for imaging in scattering media.
Localization of absorbing bodies is challenging due to superficial absorption.
Frequency-domain measurements offer depth sensitivity.

Purpose of the Study:

To investigate destructive interference of photon-density waves for localized absorption detection.
To enhance sensitivity to deeper absorbing bodies while reducing superficial layer influence.
To determine the distance of an absorbing body using phase measurements.

Main Methods:

Utilized destructive interference of diffusive photon-density waves.
Employed reflectance mode measurements with a modified frequency-domain spectrometer.
Acquired intensity and phase data at modulation frequencies up to 600 MHz.
Moved an absorbing body in three dimensions for data acquisition.
Compared experimental results with simulations from a time-dependent photon-diffusion equation.

Main Results:

Demonstrated the feasibility of using destructive interference for localization.
Showcased reduced sensitivity to superficial absorption features.
Confirmed enhanced sensitivity to deeper absorbing bodies.
Established a confined depth region of maximum sensitivity.
Successfully determined the distance of an absorbing body via phase measurement.

Conclusions:

Destructive interference of photon-density waves is effective for localized absorption detection.
The developed method improves depth-resolved imaging in scattering media.
Phase measurements provide a reliable means for determining absorber depth.