Confocal laser microspectroscopic Rabi-flopping study of an iron oxide emitter surface used for Rydberg matter generation

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• 作者：Theodor Alpermann ; Leif Holmlid
• 关键词：Rydberg matter ; Metallic hydrogen ; Catalysis ; Phase-delay spectroscopy
• 刊名：Spectrochimica Acta Part A ; Molecular and Biomolecular Spectroscopy
• 出版年：2007
• 期刊代码：99_13861425
• 类别：ch
• 出版时间：July 2007
• 卷：67
• 期：3-4
• 页码：877-885
• 文件大小：670 K

摘要

Rydberg matter (RM) is a novel metal-like material in the form of electronically excited clusters of atoms (e.g. K and H) or molecules (e.g. H₂). It is used as the inverted laser medium for IR in the RM laser. RM has recently been formed in its lowest state, which is proposed to be metallic hydrogen [Energy and Fuels 19 (2005) 2235]. An emitter material (K-doped iron oxide catalyst) that forms RM is studied by a specialized spectroscopic method, needed to detect the Rydberg states on the emitter surface. The spectroscopic method is phase-delay Rabi-flopping; it gives spectra from the time delay due to the periodic motion of the optical nutation vector. The formation of Rydberg species in the form of complexes K^*–M (M a general small molecule) and (K–M)^* is studied. So-called avoided transitions in K⁺ ions are detected, of the same type as observed as transitions in the RM laser by stimulated emission. The formation and detection of Rydberg complexes containing H and H₂ is of great interest for metallic hydrogen production. Complexes with M = CH₂, H₂O (or OH), CHO, H₂ and M′H are observed. Avoided transitions in RM clusters are also identified. The identification of H containing Rydberg complexes on the surface indicates that metallic hydrogen is formed by the same cluster desorption route as other RM clusters.