Sentence examples for radiative transition from inspiring English sources

The internal energy absorbed from the exciting radiation is lost by either a radiative transition (fluorescence or phosphorescence) or a nonradiative process.

A radiative transition between another excited state and the ground-state level of the mercury atom produces the important ultraviolet emission of 254-nanometre wavelength, which, in turn, can excite other phosphors to emit visible light.

In 1917 Einstein, though not knowing the exact mechanisms for the emission and absorption of photons, showed through thermodynamic arguments that there must be a third type of radiative transition in an atom stimulated emission.

Einstein mathematically expressed the statistical nature of the three possible radiative transition routes (spontaneous emission, stimulated emission, and absorption) with the so-called Einstein coefficients and quantified the relations between the three processes.

In order to be released from the traps they must first obtain additional thermal energy in this case, thermal energy stimulates luminescence after which they recombine with a centre and undergo radiative transition.

The radiative transition is assumed independent of temperature.

where A r and A nr are radiative and non-radiative transition rates, respectively.

Although the non-radiative transition rate was enhanced, when the fluorescence maximum shifts to the longer than 610 nm, DTOP maintains the higher radiation transition probability.

For the non-radiative transition process, the conventional assumption of (single) "promoting-mode" is abandoned and a promoting-mode free formula is presented.

Since the ZnO cores were re-annealed in O2 ambient at a higher temperature of 700°C for 2 h during the post-annealing of the HfO2 shells, the concentration of non-radiative transition centers could be reduced.

The single-crystal structure shows that alkylation of the central core and branched steric bulkiness of these molecules effectively reduce the intermolecular π ⋯ π stacking and avoid the non-radiative transition of these molecules from excited state to ground state in the solid state.