lambdaemitted
Lambdaemitted is a term used to refer to the wavelength of photons emitted by a radiative transition in a light-emitting system, such as an atom, molecule, quantum dot, or luminophore. It corresponds to the emission line produced when electrons transition from an excited state to a lower-energy state.
Physically, lambdaemitted is related to the energy difference ΔE between the two states by ΔE = h
Measurement and use: λemitted is determined by spectroscopy. Instruments such as spectrometers, monochromators, or spectrally resolving
Examples and applications: Hydrogen's Balmer-α line at about 656.3 nm; sodium D-line at about 589 nm; the
Related concepts include the emission spectrum, fluorescence, phosphorescence, and quantum yield. In solid-state environments, confinement and