Infrared-microwave double resonance in CH3OH using a Zeeman-tuned 3.5-μm HeXe laser |
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Authors: | Kojiro Takagi |
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Institution: | Department of Physics, Toyama University, Gofuku, Toyama 930, Japan |
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Abstract: | Infrared microwave double resonance signals have been observed for CH3OH using the 3.5-μm HeXe laser line. When microwave transitions in the ground vibrational state are pumped, the double resonance signals are obtained on two infrared transitions v = 1 ← 0 of νCH(a′); v = 1, J, K, μ = 4, 2, 1 ← v = 0, J, K, μ = 3, 2, 1, and 4, 3, 1 ← 3, 3, 1. Three weak double resonance signals are due to the collision-induced transitions. Their relative intensities have been explained successfully by using the rate constants of collision-induced transitions which are proportional to the dipole matrix elements between the states involved in the transitions. |
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