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Photon diffusion is a situation where photons travel through a material without being absorbed, but rather undergoing repeated scattering events which change the direction of their path. The path of any given photon is then effectively a random walk. A large ensemble of such photons can be said to exhibit diffusion in the material, and can be described with a diffusion equation.
Photondiffusion is a situation where photons travel through a material without being absorbed, but rather undergoing repeated scattering events which...
In modern cosmological theory, diffusion damping, also called photondiffusion damping, is a physical process which reduced density inequalities (anisotropies)...
Photondiffusion equation is a second order partial differential equation describing the time behavior of photon fluence rate distribution in a low-absorption...
approximation summarized here is the diffusion approximation. Overall, solutions to the diffusion equation for photon transport are more computationally...
for photon transport in tissue uses the advantages and eliminates the deficiencies of both the Monte Carlo method and the diffusion theory for photon transport...
radius, where heat transfer is by radiation) sets the photondiffusion time scale (or "photon travel time") from the core to the outer edge of the radiative...
diffusion, diffusion of molecules from more dense to less dense areas Momentum diffusion ex. the diffusion of the hydrodynamic velocity field Photon diffusion...
of diffusion Maxwell–Stefan equation Radiative transfer equation and diffusion theory for photon transport in biological tissue Streamline diffusion Numerical...
by particles Diffuser (optics) Gloom June Gloom Hard and soft light Photondiffusion "Aerodrome Weather Report" (PDF). World Meteorological Organization...
fluctuations are usually analyzed using the intensity or photon autocorrelation function (also known as photon correlation spectroscopy – PCS or quasi-elastic...
M. Yoo, Feng Liu, and R. R. Alfano "When does the diffusion approximation fail to describe photon transport in random media?" 28 May 1990 [3] S. Farsiu...
Modeling photon propagation with Monte Carlo methods is a flexible yet rigorous approach to simulate photon transport. In the method, local rules of photon transport...
electrostriction and magnetostriction). The scattering is inelastic i.e. the photon may lose energy (Stokes process) and in the process create one of the three...
each star has. A diffusion filter (also called a softening filter) softens subjects and generates a dreamy haze (see photondiffusion). This is most often...
Silk (1942–) explained the homogeneity of the early universe using photondiffusion damping Willem de Sitter (1872–1934) developed a theory of dark matter...
Solar sails (also known as lightsails, light sails, and photon sails) are a method of spacecraft propulsion using radiation pressure exerted by sunlight...
scattering or the Raman effect (/ˈrɑːmən/) is the inelastic scattering of photons by matter, meaning that there is both an exchange of energy and a change...
explains the process by which light energy in photons is converted into electric current when the photons strike a suitable semiconductor device. The theoretical...
two-photon excitation microscopy. In these techniques light is focused on a sample and the measured fluorescence intensity fluctuations (due to diffusion...
paramagnetic resonance Photon echoes in semiconductor optics J. E. Tanner & E. O. Stejskal (2003). "Restricted Self-Diffusion of Protons in Colloidal...
The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio of a photosensitive device, or it may refer to the TMR...
with suffix "e" (for "energetic") to avoid confusion with photometric or photon quantities. Alternative symbols sometimes seen: W or E for radiant energy...
state. Using a combination of diffusion iontophoresis techniques pioneered by Nicholson and colleagues, in vivo 2-photon imaging, and electroencephalography...
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