Stark Perturbed Rotational Energy Levels of the Rigid Linear Top Rotor

1970 ◽  
Vol 52 (11) ◽  
pp. 5964-5965 ◽  
Author(s):  
P. J. Bertoncini ◽  
R. H. Land ◽  
S. A. Marshall
Keyword(s):  
Energy Levels ◽  
Rotational Energy

Methane as Carrier Gas for Molecular Beam Microwave Spectroscopy to Observe Transitions of Higher Rotational Energy Levels

1996 ◽  
Vol 51 (10-11) ◽  
pp. 1091-1095 ◽  
Author(s):  
F. Lorenzo ◽  
J.-U. Grabow ◽  
H. Dreizler
Keyword(s):  
Molecular Beam ◽  
Energy Levels ◽  
Rotational Energy ◽  
Microwave Spectroscopy ◽  
Rotational Spectroscopy ◽  
Rare Gases ◽  
Carrier Gas

Abstract We report on an observation in molecular beam rotational spectroscopy: using Methane rather than rare gases as carrier extends the range of observable transitions towards levels of higher rotational energy.

scholarly journals H2O Maser Pumping by Shock Waves

1992 ◽  
Vol 150 ◽  
pp. 245-247
Author(s):  
Jacques R.D. Lepine ◽  
Astrid Heske
Keyword(s):  
Shock Wave ◽  
Shock Waves ◽  
Population Inversion ◽  
Energy Levels ◽  
Rotational Energy ◽  
Molecular Gas ◽  
Cooling Process ◽  
Final Cool

We discuss a simple H2O maser pumping mechanism in which the population inversion of the masing levels takes place during the quick cooling of the gas behind a shock wave. The population of the rotational energy levels in the initial hot state and final cool state of the molecular gas, and the decay paths between levels are analysed to calculate the average number of 22 GHz photons emitted per H2O molecule in the cooling process.

THE ROTATIONAL ENERGY LEVELS OF DIATOMIC MOLECULES IN 4Σ ELECTRONIC STATES

1962 ◽  
Vol 40 (5) ◽  
pp. 598-606 ◽  
Author(s):  
Jon T. Hougen
Keyword(s):  
Experimental Data ◽  
Diatomic Molecules ◽  
Energy Levels ◽  
Electronic States ◽  
Rotational Energy

Expressions are derived for the rotational energy levels of diatomic molecules in 4Σ states. These expressions contain two rho-type doubling parameters (γ's), and thus differ from earlier expressions which contain only one such parameter. The new expressions are in better agreement with the experimental data, though some discrepancy still exists.

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