Related Experiment Video
Updated: Jul 7, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Infrared emittance of medium containing nonsphere-shaped particles
Abstract:
The scattering and absorption sections of cylinder- and sheet-shaped particles in a binder have been investigated. The IR emittance of a coating layer composed of randomly arrayed particles embedded in the binder has been calculated in terms of the size of the particles, the volume fraction occupied by the particles, and the complex refractive indices of the particle and the binder as well as the emittance of the substrate. The calculation shows that the inhomogeneous medium including sheet-shaped particles can have lower emittance than that including cylinder- or sphere-shaped particles.
Related Concept Videos
Interaction of EM Radiation with Matter: Spectroscopy
Dual Nature of Electromagnetic (EM) Radiation
Wavelength is the distance between two consecutive peaks (the highest point) or troughs (the lowest point) in the wave. Frequency is the number of...
Infrared (IR) Spectroscopy: Overview
Different compounds display unique properties due to their...
IR Spectrum
Transmittance is defined as the ratio of the radiant power passing through a sample to that from the radiation's source. Multiplying the transmittance by 100 gives the percent transmittance (%T), which varies between 100% (no absorption) and 0% (complete...
Emission Spectra
Radiation: Applications
The average...

