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:
The de Broglie Wavelength02:32

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...
Propagation of Waves01:07

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...

You might also read

Related Articles

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

Sort by
Same author

Stealthy and hyperuniform isotropic photonic band gap structure in 3D.

PNAS nexus·2024
Same author

3D functional ultrasound imaging of pigeons.

NeuroImage·2018
Same author

Free-Standing Photonic Glasses Fabricated in a Centrifugal Field.

Small (Weinheim an der Bergstrasse, Germany)·2017
Same author

Pulse wave analysis with diffusing-wave spectroscopy.

Biomedical optics express·2017
Same author

Magneto-Adaptive Surfactants Showing Anti-Curie Behavior and Tunable Surface Tension as Porogens for Mesoporous Particles with 12-Fold Symmetry.

Angewandte Chemie (International ed. in English)·2017
Same author

Mermin-Wagner fluctuations in 2D amorphous solids.

Proceedings of the National Academy of Sciences of the United States of America·2017

Related Experiment Video

Updated: Jun 22, 2026

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy
09:25

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Published on: August 22, 2018

Diffusing-wave spectroscopy from head-like tissue phantoms: influence of a non-scattering layer.

Franck Jaillon1, Sergey E Skipetrov, Jun Li

  • 1Universität Konstanz, Fachbereich Physik, 78457 Konstanz, Germany.

Optics Express
|June 17, 2009
PubMed
Summary

A non-scattering layer, like the cerebrospinal fluid layer in the human head, significantly impacts light scattering measurements. Neglecting this layer can lead to underestimating the cortical diffusion coefficient by approximately 40%.

More Related Videos

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure
10:22

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure

Published on: February 12, 2018

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
07:55

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Related Experiment Videos

Last Updated: Jun 22, 2026

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy
09:25

Agarose-based Tissue Mimicking Optical Phantoms for Diffuse Reflectance Spectroscopy

Published on: August 22, 2018

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure
10:22

Fabrication and Characterization of Optical Tissue Phantoms Containing Macrostructure

Published on: February 12, 2018

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
07:55

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Area of Science:

  • Biomedical Optics
  • Medical Physics
  • Turbid Media Optics

Background:

  • Accurate measurement of light transport in turbid media is crucial for biomedical applications.
  • The human head presents a complex multilayered structure with varying optical properties.
  • Non-scattering layers, such as cerebrospinal fluid, can significantly alter light propagation and autocorrelation functions.

Purpose of the Study:

  • To investigate the influence of a non-scattering layer on the temporal field autocorrelation function of multiply scattered light.
  • To assess the impact of neglecting the non-scattering layer on the estimation of optical properties like the diffusion coefficient.
  • To validate theoretical models and simulations against experimental phantom data.

Main Methods:

  • Monte Carlo simulations were employed to model light transport in multilayered turbid media.
  • The correlation-diffusion equation with specialized boundary conditions was used to predict autocorrelation functions.
  • Experiments were conducted on multilayered phantoms incorporating a non-scattering layer.
  • Field autocorrelation functions were measured at the surface of the phantoms.

Main Results:

  • Monte Carlo simulations showed excellent agreement with the correlation-diffusion equation, accounting for non-diffusive transport in the non-scattering layer.
  • Experimental measurements on phantoms aligned well with theoretical predictions and simulations for sufficient source-receiver distances.
  • Neglecting the non-scattering cerebrospinal fluid layer resulted in an underestimation of the cortical diffusion coefficient by approximately 40% in human head models.

Conclusions:

  • The presence of a non-scattering layer significantly affects the temporal field autocorrelation function of scattered light.
  • Accurate modeling of light transport requires incorporating the effects of non-scattering layers, especially for deep tissue measurements.
  • Underestimation of optical properties can occur if the non-scattering cerebrospinal fluid layer is ignored in analyses relevant to the human head.