摘要: The Autler?Townes doublet and triplet spectroscopy are well known in the literature. Here, atomic systems for quartuplet, quintuplet emission their linkages with sodium atom investigated display of corresponding spectra. We explore involved fundamental processes quantum interference these by examining Laplace transform state-vector subjected to steady coherent illumination rotating wave approximation Weisskopf?Wigner treatment spontaneous as a simplest probability loss. In quartuplet (quintuplet), four (five) fields interact appropriately resonantly five-level (six-level) atom. spectral profile single decaying level, upon interaction three (four) other levels, splits into destructively interfering dressed states generating dark lines spectrum. These divide spectrum components (bright lines) whose widths effectively controlled relative strength laser width level. idea is also extended higher-ordered spectroscopy. apparent disadvantage schemes successive increase number required strongly interactive states. However, complexities naturally inherited beauty systems. They provide foundations basic mechanisms multiplet
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