Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Sub-Doppler spectroscopy of the C—O stretching fundamental band of methanol by use of microwave sidebands of CO2 laser lines

Not Accessible

Your library or personal account may give you access

Abstract

Microwave sidebands of CO2 laser lines were used in a sub-Doppler spectrometer to observe sub-Doppler spectrum of the C—O stretching fundamental band (vCO=10) of methanol. Frequencies of more than 200 vibration-rotation lines were measured with an accuracy of better than 0.20 MHz. Sixty-one blended spectral lines in the Fourier-transform spectrum were resolved with a resolution of 0.2 MHz. For transitions involving A-species levels with K=2, 3, and 4 in the vt=0 state and K=2 in the vt=1 state, 64 doublet lines arising from asymmetry splittings were observed. From these observed asymmetry splittings and calculated ground-state splittings the asymmetry splittings and asymmetry-splitting constants for the vCO=1 state were determined. The R- and Q-branch transitions for the (vt, E, K)=(1, E, 2) and (1, E, 5) sequences were assigned by observation of their Stark effects and by use of the Ritz’s combination principle. Term values of the levels in the vCO=1 state for these two sequences were given, and their Taylor-series expansion coefficients were determined.

© 2000 Optical Society of America

Full Article  |  PDF Article
More Like This
Saturation-dip measurements for the ν8 C-O stretching band of CH3OH with a CO2-laser-microwave-sideband spectrometer

Zhen-Dong Sun, Ronald M. Lees, and Li-Hong Xu
J. Opt. Soc. Am. B 23(11) 2398-2417 (2006)

Infrared–microwave double-resonance spectroscopy of CH3OH by use of sidebands of CO2 laser lines

Zhen-Dong Sun, Fusakazu Matsushima, Shozo Tsunekawa, and Kojiro Takagi
J. Opt. Soc. Am. B 16(9) 1447-1454 (1999)

Microwave spectroscopy of methanol between 2.48 and 2.77 THz

John C. Pearson, Brian J. Drouin, Shanshan Yu, and Harshal Gupta
J. Opt. Soc. Am. B 28(10) 2549-2577 (2011)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (6)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved