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Direct observation of rotational energy transfer in ammonia by time-resolved infrared—microwave double resonance

✍ Scribed by J.M. Levy; J.H.S. Wang; S.G. Kukolich; J.I. Steinfeld

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 353 KB
Volume: 21
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(73)80318-5

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✦ Synopsis

An NzO laser is used to pump the ground vibrational state (8,7) inversion doublet of r4NH3 while simultaneously monitoring other pound state doublets. Time-resolved rotational energy transfer signals are observed in accordance with known selection values. Absolute rates cf rotational energy transfer processes arc estimated.

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State-to-state vibrational and rotational energy transfer in CO2 gas from time-resolved raman–infrared double resonance experiments

✍ G. Millot; C. Roche 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 381 KB 👁 1 views

A time-resolved Raman-infrared double resonance technique was used to study collisional relaxation rates of vibrational and rotational energy levels in gas at 295 K. A pulsed Raman excitation populated a selected CO 2 rovibrational initial state. Measurements of the rates of transfer from the pumped