In 1913, Stark observed a splitting of the lines of the Balmer series of hydrogen (8.2) in an electric field. He was studying the light emission of H atoms in the field of a condenser (Figs. 15.1, 2). Since then, frequency shifts in optical spectra in the presence of eletric fields have been generally called the Stark effect.
KeywordsMatrix Element Harmonic Oscillator Radiation Field Electric Field Strength Occupation Number
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