Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb
Data set from peer-reviewed publication: D. M. Bailey et al., Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb, Analytical Chemistry, 92, 13759-13766 (2020).
As a potent greenhouse gas and an ozone depleting agent, nitrous oxide (N2O) plays a critical role in the global climate. Effective mitigation relies on understanding global sources and sinks, which can be supported through isotopic analysis. We present a cross-dispersed spectrometer, coupled with a mid-infrared frequency comb, capable of simultaneously monitoring all singly substituted, stable isotopic variants of N2O. Rigorous evaluation of the instrument lineshape function and data treatment using a Doppler-broadened, low-pressure gas sample are discussed. Laboratory characterization of the spectrometer demonstrates sub-GHz spectral resolution and an average precision of 6.7 x 10^{-6} for fractional isotopic abundance retrievals in 1 s.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
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| contactPoint |
{
"fn": "Adam Fleisher",
"hasEmail": "mailto:adam.fleisher@nist.gov"
}
|
| description | Data set from peer-reviewed publication: D. M. Bailey et al., Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb, Analytical Chemistry, 92, 13759-13766 (2020). As a potent greenhouse gas and an ozone depleting agent, nitrous oxide (N2O) plays a critical role in the global climate. Effective mitigation relies on understanding global sources and sinks, which can be supported through isotopic analysis. We present a cross-dispersed spectrometer, coupled with a mid-infrared frequency comb, capable of simultaneously monitoring all singly substituted, stable isotopic variants of N2O. Rigorous evaluation of the instrument lineshape function and data treatment using a Doppler-broadened, low-pressure gas sample are discussed. Laboratory characterization of the spectrometer demonstrates sub-GHz spectral resolution and an average precision of 6.7 x 10^{-6} for fractional isotopic abundance retrievals in 1 s. |
| distribution |
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|
| identifier | ark:/88434/mds2-2316 |
| issued | 2020-10-27 |
| keyword |
[
"Environment and Climate",
"greenhouse gases",
"nitrous oxide",
"optical frequency combs",
"remote sensing",
"spectroscopy"
]
|
| landingPage | https://data.nist.gov/od/id/mds2-2316 |
| language |
[
"en"
]
|
| license | https://www.nist.gov/open/license |
| modified | 2020-09-18 00:00:00 |
| programCode |
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| publisher |
{
"name": "National Institute of Standards and Technology",
"@type": "org:Organization"
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| references |
[
"https://dx.doi.org/10.1021/acs.analchem.0c01868"
]
|
| theme |
[
"Chemistry:Analytical chemistry",
"Environment:Greenhouse gas measurements",
"Physics:Optical physics",
"Physics:Spectroscopy"
]
|
| title | Precision spectroscopy of nitrous oxide isotopocules with a cross-dispersed spectrometer and a mid-infrared frequency comb |
