Photon density waves

Photon Density Waves (PDWs) are fluctuations in the concentration of light energy traveling through a medium, similar to how sound waves move through air. When light is scattered or modulated within tissues or materials, these variations create wave-like patterns called photon density waves. PDWs help scientists and medical professionals measure properties of the medium, like blood flow or tissue composition, by analyzing how these waves propagate and attenuate. This technique is crucial in applications such as non-invasive imaging and diagnostics, providing valuable information about the internal structure of a material or biological tissue.