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

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...

$Interference and Diffraction$ 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.

Diffusion on Chromatography Columns

Diffusion on Chromatography Columns

In column chromatography, when an analyte is introduced as a narrow band at the top of the column, the solutes begin to separate and broaden, developing a Gaussian profile. This broadening occurs due to various factors, such as longitudinal diffusion.
Longitudinal diffusion occurs when the solute molecules in the mobile phase diffuse from the more concentrated center of the chromatographic band to the more dilute regions on either side, both towards and against the flow direction. This...

IR Spectrum Peak Broadening: Hydrogen Bonding

IR Spectrum Peak Broadening: Hydrogen Bonding

The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular hydrogen bonding...

Propagation Speed of Electromagnetic Waves

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:

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...

You might also read

Related Articles

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

Sort by

Same author

Thermal action of laser irradiation in biological material monitored by egg-white coagulation.

Applied optics·2010

Same author

Laser coagulation: practical advice from a theoretical viewpoint.

Applied optics·2010

Same author

Thermodynamic analysis of laser irradiation of biological tissue.

Applied optics·2010

Same author

Geometrical form factors for the lidar function.

Applied optics·2010

Same author

Ambiguous figures by Bosch.

Perception & psychophysics·1984

Same author

Theoretical and experimental investigations prove Nd: YAG laser treatment to be safe.

Lasers in surgery and medicine·1981

Search research articles

Related Experiment Video

Updated: Jun 13, 2026

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

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

Published on: September 22, 2017

Beam broadening in dense scattering media.

¹Messerschmitt-Bolkow-Blohm GmbH, Unternehmensbereich Apparate, Postfach 80 11 49, 8000 Munchen 80, Federal Republic of Germany.

|April 15, 2010

Summary

This study solves the 3-D integral equation for light scattering in dense media, calculating scattered light profiles and spot sizes for biological tissue irradiated by a laser.

Area of Science:

Optics
Biophysics
Computational Physics

Background:

Light scattering in dense media is crucial for understanding light transport in materials like biological tissue.
Modeling light propagation requires solving complex integral equations that describe scattering phenomena.

Purpose of the Study:

To solve the 3-D integral equation for light scattering from a Gaussian laser beam incident on a slab of scattering material.
To analyze the radial and angular distribution of scattered light, particularly for biological tissue applications.
To investigate the impact of scattering properties and laser beam parameters on the resulting light distribution and spot sizes.

Main Methods:

Reduced the full 3-D integral equation to a 2-D problem for computational efficiency.

More Related Videos

Mechanical Mapping of Spheroids Using Brillouin Spectroscopy

Mechanical Mapping of Spheroids Using Brillouin Spectroscopy

Published on: December 12, 2025

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Published on: July 25, 2022

Related Experiment Videos

Last Updated: Jun 13, 2026

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

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

Published on: September 22, 2017

Mechanical Mapping of Spheroids Using Brillouin Spectroscopy

Mechanical Mapping of Spheroids Using Brillouin Spectroscopy

Published on: December 12, 2025

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Multiplex Chemical Imaging Based on Broadband Stimulated Raman Scattering Microscopy

Published on: July 25, 2022

Discretized the integral equation and solved it using a standard iterative procedure.

Reconstructed the 3-D irradiance distribution from the 2-D solution and calculated spot sizes.

Main Results:

Obtained the 3-D irradiance distribution (r and z dependence) of scattered light.
Calculated the angular distribution of both backward and forward scattered light.
Determined the radial dependence of scattered light emerging normal to the surface.
Quantified spot sizes for various laser beam radii and material parameters relevant to biological tissue.
Observed the effect of increasing scattering coefficient on spot profiles and radii.

Conclusions:

The iterative solution provides a method to predict light scattering patterns in dense media.
The study offers insights into laser-tissue interaction, specifically for Nd:YAG laser irradiation.
Results facilitate the optimization of laser parameters for applications requiring controlled light delivery or imaging in scattering media.