Spectral lines are the result of interaction between a quantum system (usually atoms, but sometimes molecules
A … See more

Strong spectral lines in the visible part of the electromagnetic spectrum often have a unique Fraunhofer line designation, such as K for a line at 393.366 nm emerging from singly-ionized calcium atom, Ca , though some of th… See more

There are a number of effects which control spectral line shape. A spectral line extends over a tiny spectral band with a nonzero range of frequencies, not a single frequency (i.e., a nonzero spectral width). In addition, its center m… See more

The phrase "spectral lines", when not qualified, usually refers to lines having wavelengths in the visible band of the full electromagnetic spectrum. Many spectral lines occur at wavelengths outside this range. At s… See more

• Absorption spectrum
• Atomic spectral line
• Bohr model
• Electron configuration
• Emission spectrum… See more

• Griem, Hans R. (1997). Principles of Plasma Spectroscopy. Cambridge: University Press. ISBN 0-521-45504-9.
• Griem, Hans R. (1974). Spectral Line Broadening by Plasmas. New York: Academic … See more