Tretyakov M. Yu., Parshin V. V., Shanin V. N., Myasnikova S. E., Koshelev M. A., Krupnov A. F.
Applied Physics Institute of RAS, 46 Uljanova Street, Nizhnii Novgorod GSP-120, 603600, Russia
J Mol Spectrosc. 2001 Jul;208(1):110-112. doi: 10.1006/jmsp.2001.8363.
For the first time the 118-GHz line of the oxygen molecule was investigated in the laboratory under a real atmosphere. The experiment was carried out by modern resonator spectroscopy methods on the laboratory air at atmospheric pressure. The shape of the line under the real atmosphere was found to fit the Van Vleck-Weisskopf profile within experimental accuracy. The air broadening parameter value was defined as 2.14+/-0.07 MHz/Torr. The observed atmosphere oxygen line central frequency was found to be shifted down at about 150 MHz from the line center measured at low pressures, which gives a value of -0.19+/-0.08 MHz/Torr for the air shift parameter. A comparison with previous investigations is presented and reprocessing of some experimental results of other authors was carried out. Results of reprocessing agree with the findings of the present paper. Copyright 2001 Academic Press.
首次在实验室真实大气环境下对氧分子的118吉赫兹谱线进行了研究。实验采用现代谐振腔光谱法，在大气压下对实验室空气进行测量。发现在真实大气环境下该谱线的形状在实验精度范围内符合范弗莱克 - 魏斯科普夫轮廓。空气展宽参数值确定为2.14±0.07兆赫/托。观测到的大气氧谱线中心频率相对于在低压下测得的谱线中心下移了约150兆赫，由此得出空气频移参数值为 -0.19±0.08兆赫/托。文中给出了与先前研究的比较，并对其他作者的一些实验结果进行了重新处理。重新处理的结果与本文的发现相符。版权所有2001，学术出版社。
