INFRARED TEMPERATURE AND LINE STRENGTH MEASUREMENTS ON CARBON MONOXIDE EXCITED IN A RADIO-FREQUENCY DISCHARGE

1960 ◽  
Vol 38 (3) ◽  
pp. 390-398 ◽  
Author(s):  
D. R. Eaton
Keyword(s):  
Carbon Monoxide ◽  
Radio Frequency ◽  
Thermal Equilibrium ◽  
Experimental Error ◽  
Line Strength ◽  
Line Intensities ◽  
Relative Line ◽  
Theoretical Predictions ◽  
Vibration Rotation ◽  
Radio Frequency Discharge

Relative line intensities in the 2 → 0 sequence of bands of carbon monoxide observed in emission from a radio-frequency discharge have been measured. An enhancement of the R branch lines and a diminution of the P branch lines due to vibration–rotation interaction has been observed in agreement with theoretical predictions. Vibrational and rotational temperatures have been calculated and when allowance is made for the vibration–rotation interaction these prove to be equal within experimental error indicating the existence of thermal equilibrium in the discharge.

Carbon monoxide laser excited by radio‐frequency discharge

1987 ◽  
Vol 50 (18) ◽  
pp. 1222-1224 ◽  
Author(s):  
G. N. Pearson ◽  
D. R. Hall
Keyword(s):  
Carbon Monoxide ◽  
Radio Frequency ◽  
Radio Frequency Discharge

Sum frequency generation of multi-line slab radio frequency discharge carbon monoxide laser system with intracavity nonlinear BaGa2GeSe6 crystal

2018 ◽  
Vol 43 (18) ◽  
pp. 4358 ◽  
Author(s):  
A. A. Ionin ◽  
D. V. Badikov ◽  
V. V. Badikov ◽  
I. O. Kinyaevskiy ◽  
Yu. M. Klimachev ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Radio Frequency ◽  
Laser System ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Frequency Generation ◽  
Radio Frequency Discharge ◽  
Line Slab

Radio-frequency-discharge-excited carbon monoxide lasers

1993 ◽  
Author(s):  
Howard J. Baker ◽  
Alan D. Colley ◽  
Denis R. Hall ◽  
N. Rodrigues ◽  
H. Zhao
Keyword(s):  
Carbon Monoxide ◽  
Radio Frequency ◽  
Carbon Monoxide Lasers ◽  
Radio Frequency Discharge

Photo-electric Hβ and uvby photometry

1966 ◽  
Vol 24 ◽  
pp. 170-180
Author(s):  
D. L. Crawford
Keyword(s):  
Narrow Band ◽  
Line Strength ◽  
Interference Filter ◽  
B Stars ◽  
Relative Line ◽  
The Mean ◽  
F Stars ◽  
Two Parameters ◽  
Filter Photometry ◽  
The Continuum

Early in the 1950's Strömgren (1, 2, 3, 4, 5) introduced medium to narrow-band interference filter photometry at the McDonald Observatory. He used six interference filters to obtain two parameters of astrophysical interest. These parameters he calledlandc, for line and continuum hydrogen absorption. The first measured empirically the absorption line strength of Hβby means of a filter of half width 35Å centered on Hβand compared to the mean of two filters situated in the continuum near Hβ. The second index measured empirically the Balmer discontinuity by means of a filter situated below the Balmer discontinuity and two above it. He showed that these two indices could accurately predict the spectral type and luminosity of both B stars and A and F stars. He later derived (6) an indexmfrom the same filters. This index was a measure of the relative line blanketing near 4100Å compared to two filters above 4500Å. These three indices confirmed earlier work by many people, including Lindblad and Becker. References to this earlier work and to the systems discussed today can be found in Strömgren's article inBasic Astronomical Data(7).

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