TY - JOUR
T1 - Observation and analysis of optical free induction decay in the CH3F Ν4 band
AU - Okabayashi, Yusuke
AU - Miyamoto, Yuki
AU - Tang, Jian
AU - Kawaguchi, Kentarou
N1 - Funding Information:
The present study was partially supported by the Grant-in-Aid (Grant No. 21104003 ) from the Ministry of Education, Culture, Sports, Science and Technology of Japan .
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018/1/16
Y1 - 2018/1/16
N2 - Optical free induction decay (FID) signals of the CH3F ν4 band were observed by using a cw-OPO infrared laser coupled with a Stark switching method. The observed signals have been Fourier transformed to obtain the Lorentz functions and the widths have been analyzed to determine the pressure-broadening coefficients for rR(0,0), rQ(1,0), rR(1,0), rR(1,1), and pP(2,1) to be 1/(πT2 p) = (46.1 ± 2.1), (31.6 ± 3.6), (21.8 ± 2.5), (25.2 ± 4.0), and (26.5 ± 1.8) MHz/Torr, where T2 is the transverse decay time. The value of rR(0,0) is larger than that determined from a recent pressure-broadening measurement by 39 ± 12%. The difference is explained by collision induced reorienting transitions (ΔM = ±1, ΔJ = 0).
AB - Optical free induction decay (FID) signals of the CH3F ν4 band were observed by using a cw-OPO infrared laser coupled with a Stark switching method. The observed signals have been Fourier transformed to obtain the Lorentz functions and the widths have been analyzed to determine the pressure-broadening coefficients for rR(0,0), rQ(1,0), rR(1,0), rR(1,1), and pP(2,1) to be 1/(πT2 p) = (46.1 ± 2.1), (31.6 ± 3.6), (21.8 ± 2.5), (25.2 ± 4.0), and (26.5 ± 1.8) MHz/Torr, where T2 is the transverse decay time. The value of rR(0,0) is larger than that determined from a recent pressure-broadening measurement by 39 ± 12%. The difference is explained by collision induced reorienting transitions (ΔM = ±1, ΔJ = 0).
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U2 - 10.1016/j.cplett.2017.12.009
DO - 10.1016/j.cplett.2017.12.009
M3 - Article
AN - SCOPUS:85037999219
SN - 0009-2614
VL - 692
SP - 106
EP - 110
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -