Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/4652
Title: | Photon channelling in foams |
Authors: | Gittings, A.S. Bandyopadhyay, Ranjini Durian, D.J. |
Issue Date: | 2004 |
Publisher: | Institute of Physics |
Citation: | Europhysics Letters, 2004, Vol.65, p414-419 |
Abstract: | We report on the absorption of diffuse photons in aqueous foams by a dye added to the continuous liquid phase. For very wet and for dry foams, the absorption of the diffuse photons equals the absorption length of the liquid divided by the liquid volume fraction. This indicates that the diffuse photons propagate by a random walk, sampling each phase in proportion to its volume. Foams of intermediate wetness, by contrast, absorb photons more strongly than expected. A 2D computer simulation, modeling photons scattering in a foam crystal, also shows enhanced absorption. This encourages us to consider novel transport effects, such as the total internal reflection of photons inside the Plateau borders. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/4652 |
ISSN: | 0295-5075 1286-4854 (Online) |
Copyright: | 2004 Institute of Physics |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2004_Europhysics Letters_V65_p414.pdf Restricted Access | Restricted Access | 143.16 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.