THE MICROWAVE ABSORPTION SPECTRUM OF METHYL ALCOHOL

1950 ◽  
Vol 28a (2) ◽  
pp. 180-189 ◽  
Author(s):  
Barbara M. Girdwood
Keyword(s):  
Absorption Spectrum ◽  
Water Vapor ◽  
Radio Frequency ◽  
Microwave Absorption ◽  
Methyl Alcohol ◽  
Repetition Rate ◽  
Sine Wave ◽  
Large Percentage ◽  
Shaped Pulse ◽  
Double Modulation

The microwave absorption spectrum of methyl alcohol was studied in the region 23,400 to 25,200 Mc., using a double modulation system in which the usual radio-frequency sine wave was replaced by a sharp, pip-shaped pulse with a repetition rate of 55 kc. Twenty-five new lines were found and these, along with those previously reported outside the region examined, were grouped into four series. When the methyl alcohol was mixed with a large percentage of water vapor the spectrum was found to be modified considerably.

The Microwave Absorption Spectrum of Acetone Vapor

1952 ◽  
Vol 20 (4) ◽  
pp. 755-755 ◽  
Author(s):  
Thomas L. Weatherly ◽  
Dudley Williams
Keyword(s):  
Absorption Spectrum ◽  
Microwave Absorption ◽  
Acetone Vapor

Water vapor absorption spectrum measurements and its application in concentration measurement

2012 ◽  
Author(s):  
Jun Chang ◽  
Kun Chen ◽  
Guoqing Zhou ◽  
Guangping Lv ◽  
Cunguang Zhu ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Water Vapor ◽  
Concentration Measurement ◽  
Water Vapor Absorption ◽  
Vapor Absorption ◽  
Spectrum Measurements

scholarly journals Broad Repetition-Rate Tunable Quantum-Dot External-Cavity Passively Mode-Locked Laser with Extremely Narrow Radio Frequency Linewidth

2011 ◽  
Vol 4 (6) ◽  
pp. 062703 ◽  
Author(s):  
Ying Ding ◽  
Maria Ana Cataluna ◽  
Daniil Nikitichev ◽  
Igor Krestnikov ◽  
Daniil Livshits ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Radio Frequency ◽  
Repetition Rate ◽  
External Cavity ◽  
Mode Locked Laser

ON THE ABSORPTION SPECTRUM OF H2O AND D2O IN THE VACUUM ULTRAVIOLET

1963 ◽  
Vol 41 (2) ◽  
pp. 209-219 ◽  
Author(s):  
J. W. C. Johns
Keyword(s):  
Absorption Spectrum ◽  
Water Vapor ◽  
High Resolution ◽  
Heavy Water ◽  
Vacuum Ultraviolet ◽  
Rydberg Series ◽  
Accuracy Of Measurement ◽  
Concave Grating

The spectra of normal and heavy water vapor have been observed under high resolution in the region 1220–1240 Å. One band of H2O and two bands of D2O have been measured and analyzed. The spectra were taken in the ninth order of a 35-ft concave-grating spectrograph and the accuracy of measurement of the sharper lines is estimated to be about ± 0.005 Å. The results of the analyses are summarized below.[Formula: see text]These bands have been assigned as belonging to the first member of one of the two np Rydberg series.

scholarly journals Detection of electric-quadrupole transitions in water vapour near 5.4 and 2.5 μm

2020 ◽  
Vol 22 (22) ◽  
pp. 12476-12481 ◽  
Author(s):  
Alain Campargue ◽  
Alexander M. Solodov ◽  
Alexander A. Solodov ◽  
Andrey Yachmenev ◽  
Sergei N. Yurchenko
Keyword(s):  
Absorption Spectrum ◽  
Fourier Transform ◽  
Water Vapor ◽  
Water Vapour ◽  
Infrared Absorption ◽  
Infrared Absorption Spectrum ◽  
Electric Quadrupole ◽  
Fourier Transform Spectroscopy

Electric-quadrupole transitions, presently detected by Fourier transform spectroscopy, contribute to the infrared absorption spectrum of water vapor.

Microwave absorption spectrum of methoxyethyne

2010 ◽  
Vol 84 (10) ◽  
pp. 1357-1366 ◽  
Author(s):  
D. den Engelsen ◽  
H. A. Dijkerman ◽  
J. Kerssen
Keyword(s):  
Absorption Spectrum ◽  
Microwave Absorption
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