Vibrational excitation of the ν₂ mode of NH₃ by infrared free electron laser

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• 作者：Yoshihiro Ogi ; Masashi Kawashita and Koichi Tsukiyama
• 刊名：Chemical Physics Letters
• 出版年：2006
• 出版时间：3 April 2006
• 年：2006
• 卷：421
• 期：1-3
• 页码：96-100
• 全文大小：223 K

文摘

Vibrational excitation process in NH₃ by a mid-infrared free electron laser at Tokyo University of Science (FEL-SUT) is reported. The population of the ν₂ = 1 and 2 vibrationally excited states was monitored by the (2 + 1) resonance-enhanced multi-photon ionization (REMPI) technique via the Rydberg state. Excitation efficiency of the ν₂ = 1 ← ν₂ = 0 transition was approximately 30 % . The rotationally resolved pathway for the vibrational ladder climbing up to ν₂ = 2 was identified through the analyses of the REMPI spectra and the FEL excitation spectra.