Spectral Term

Term, Spectral


a quantity used in spectroscopy, which is proportional to the steady-state energy of an atom or molecule. Spectral terms were first introduced empirically in the analysis of regularities of the positions of lines in spectra.

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Subsequently, a Fourier transformation is performed to replace the x coordinate in the Helmholtz equation with the spectral term a.
and substituting the variation in x direction by the spectral term a in Eqs.
8 that the convergence of the resonant frequency is reached as the number of the spectral terms [alpha](n) increases.

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