Microwave Spectrum of HCOOH in the υ_<CH>=1 Vibrational State Observed by Laser-Microwave Double and Triple Resonance
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概要
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Application of laser-microwave double and triple resonance techniques to microwave spectroscopy of HCOOH in the CH stretching vibrational state is reported. The 3.39 μm output from a He-Ne Laser is Zeeman-tuned to saturate a rotation-vibration transition of HCOOH. The microwave transition from the upper state of the infrared transition is stimulated with a klystron and the resulting increase of the infrared absorption is detected. A technique of triple resonance is employed to observe microwave transitions which do not share a common level with the infrared transition. From the observed nineteen pure rotational transitions the rotational constants in the excited state are determined. Accuracy of the constants is limited by the effect of interactions between the vibrational states. The double and triple resonance effects for microwave spectroscopy of excited molecules are discussed by a rate equation approximation.
- 社団法人応用物理学会の論文
- 1974-11-05
著者
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Takami Michio
Microwave Physics Laboratory The Institute Of Physical And Chemical Research
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Takami Michio
Microwave Physics Laboratory Institute Of Physical And Chemical Research
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Shimoda Koichi
Microwave Physics Laboratory, Institute of Physical and Chemical Research
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Shimoda Koichi
Microwave Physics Laboratory The Institute Of Physical And Chemical Research
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Shimoda Koichi
Microwave Physics Laboratory Institute Of Physical And Chemical Research
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