Recent content by ctydtgat

How can I calculate the absorption cross section of a harmonic oscillator in an EM field?

In a thermo-luminescent material there are electron traps just below the conduction band and there are impurity luminescent centers in the crystal, e.g. Eu, Ce, ... After UV illumination of the material, luminescent centers (Eu, ..) can be ionized (Eu2+ -> Eu3+) and the released electron will be...

In a measurement of an OSL spectrum the wavelength of the stimulation source is always higher than the wavelength of the emission of the material. Is this due to the fact that at lower wavelengths one can no longer distinguish between stimulation and emission light? Can electron traps be...

Inelastic scattering of Xray photons from electrons give them a wavelength shift, the Compton effect. The shift is inverse proportional with the mass of the electron. Now, if visible light scatters inelastic from electrons in graphene what will be the wavelength shift? The electrons in graphene...