O

Optical Spectrum

Katelyn Feuling

Many materials, from atomic gasses to semiconductors, have unique optical spectra. Experimentally, these spectra are obtained in the infrared through the ultraviolet portion of the electromagnetic spectrum. Absorption spectra record all wavelengths that promote an electron from the HOMO to unoccupied states.

Learn More →

Osscilator Strength

Shraman Saha

Two major pieces of information are obtained from a spectral plot of an atom or a molecule. First, the energy of the transition, and second the intensity of the transition. The intensity of the transition suggests how likely the transition is (a.k.a how strongly coupled the two states are). Quantum mechanically, the likelihood of the transition…

Learn More →