Show simple item record

dc.creatorCich, Matthew J.en_US
dc.creatorLopez, Gary V.en_US
dc.creatorSears, Trevor J.en_US
dc.creatorMcRaven, C. P.en_US
dc.creatorMantz, A. W.en_US
dc.creatorHurtmans, Danielen_US
dc.date.accessioned2012-07-09T19:19:29Z
dc.date.available2012-07-09T19:19:29Z
dc.date.issued2012en_US
dc.identifier2012-TA-01en_US
dc.identifier.urihttp://hdl.handle.net/1811/52332
dc.descriptionAcknowledgements:Acknowledgement is made to the Donors of the American Chemical Society Petroleum Research Fund for partial support of this research. CPM gratefully acknowledges support by DOE EPSCoR grant DOE-07ER46361 for work conducted at the University of Oklahoma. The measurements and analyses were performed under grants NNX09AJ93G and NNX08AO78G from the NASA Planetary and Atmospheres program.en_US
dc.descriptionAuthor Institution: Department of Chemistry, Stony Brook University, Stony Brook, New York 11794; Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973; Department of Physics, Astronomy, and Astrophysics, Connecticut College, New London, CT 06320; Service de Chimie Quantique et de Photophysique(Atoms, Molecules et Atmospheres), Universite Libre de Bruxelles, Bruxelles, Belgium B-10050en_US
dc.description.abstractUsing an extended cavity diode laser locked to a single component of an Er-fiber-based femtosecond frequency comb, we have made precise measurements of absorption spectral line shapes in a temperature controlled cell. Varying pressures of acetylene and nitrogen were used to determine the N$_2$ pressure-dependent parameters for the P(11) line in the $\nu_1$ + $\nu_3$ combination band of acetylene at 195 739.649 513(8) GHz. The temperature dependence of the line shape was determined from measurements at several temperatures, varying from 296 K to 125 K. With the absolute frequency positions at each point on the frequency scale determined by the comb, each experimental data set has better than 10$^{-4}$ fractional error. Parameters describing the line shape, such as pressure-dependent broadening, narrowing and shift coefficients, can be obtained with standard deviations less that 0.1\%. The data have been used to test various line shape models beyond the standard Voigt approximation including those with narrowing parameters (Rautian and Galatry models) and those with speed-dependence (Speed-dependent Voigt and Speed-dependent Nelkin-Ghatak models). Fitting results will be presented and the relative performance of the models will be discussed.en_US
dc.language.isoenen_US
dc.publisherOhio State Universityen_US
dc.titleFREQUENCY COMB-REFERENCED MEASUREMENTS OF SELF- AND NITROGEN-PERTURBED LINE SHAPE PARAMETERS IN THE $\nu_1$ + $\nu_3$ BAND OF ACETYLENEen_US
dc.typeArticleen_US
dc.typeImageen_US
dc.typePresentationen_US


Files in this item

Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail
Thumbnail

Items in Knowledge Bank are protected by copyright, with all rights reserved, unless otherwise indicated.

This item appears in the following Collection(s)

Show simple item record