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Related Experiment Video

Updated: Jun 15, 2026

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

Coal particle combustion studied by holography.

J D Trolinger, M P Heap

|March 10, 2010

Summary

Holography precisely measured burning coal particle size and velocity in free flight. This advanced technique captured previously unobserved combustion events, offering new insights into coal combustion dynamics.

Area of Science:

Combustion Science
Optical Physics
Particle Imaging

Background:

Understanding coal combustion is crucial for energy production and emissions control.
Previous methods had limitations in resolving dynamic events of burning coal particles.
Holography offers potential for high-resolution, non-intrusive particle analysis.

Purpose of the Study:

To investigate the application of holography for studying burning coal particles in free flight.
To achieve high-resolution measurements of particle size and velocity.
To record and analyze fundamental coal combustion events.

Main Methods:

Utilized in-line and off-axis holography for particle imaging.
Employed holographic interferometry for advanced analysis.

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Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Published on: May 26, 2014

Related Experiment Videos

Last Updated: Jun 15, 2026

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes

Published on: May 26, 2014

Conducted experiments in the combustion zone of a flat flame burner.

Main Results:

Attained spatial resolution of approximately 3 micrometers.
Successfully measured size and velocity of coal particles up to 75 micrometers in diameter.
Recorded novel, previously unobserved basic combustion events in coal.

Conclusions:

Holography is a viable and powerful technique for studying dynamic coal combustion processes.
The study provides new observational data on fundamental coal combustion events.
Comparison of in-line and off-axis holography demonstrated their respective imaging characteristics.