Uncertainty analysis of absolute concentration measurement with continuous-wave cavity ringdown spectroscopy

Jae Wan Kim, Yong Shim Yoo, Jae Yong Lee, Jae Bong Lee, Jae Won Hahn

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

To evaluate the uncertainty of concentration measurement using cavity ringdown spectroscopy, we analytically derived expressions for uncertainty for parameters, such as temperature, laser frequency, and ringdown time deviation, from the model equation. The uncertainties that are due to systematic errors in a practical cavity ringdown system were assessed through an experimental study of the PQ(35) transition in an A band of molecular oxygen. We found that, except for the line strength that is regarded as a reference value independent of the measurement, the laser frequency jitter is the largest uncertainty source in the system. Some practical requirements for minimizing the uncertainty in concentration measurements are discussed. We also demonstrated determination of the line strength of the PQ(35) transition line of oxygen to be 8.63(3) × 10Ȓ27 cm−1 with a relative uncertainty of less than 0.4%.

Original languageEnglish
Pages (from-to)5509-5516
Number of pages8
JournalApplied Optics
Volume40
Issue number30
DOIs
Publication statusPublished - 2001 Oct 10

Fingerprint

Uncertainty analysis
continuous radiation
Spectroscopy
cavities
spectroscopy
oxygen
systematic errors
lasers
Molecular oxygen
Lasers
Systematic errors
Jitter
deviation
vibration
requirements
Uncertainty
Oxygen
temperature

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

Kim, Jae Wan ; Yoo, Yong Shim ; Lee, Jae Yong ; Lee, Jae Bong ; Hahn, Jae Won. / Uncertainty analysis of absolute concentration measurement with continuous-wave cavity ringdown spectroscopy. In: Applied Optics. 2001 ; Vol. 40, No. 30. pp. 5509-5516.
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Uncertainty analysis of absolute concentration measurement with continuous-wave cavity ringdown spectroscopy. / Kim, Jae Wan; Yoo, Yong Shim; Lee, Jae Yong; Lee, Jae Bong; Hahn, Jae Won.

In: Applied Optics, Vol. 40, No. 30, 10.10.2001, p. 5509-5516.

Research output: Contribution to journalArticle

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AB - To evaluate the uncertainty of concentration measurement using cavity ringdown spectroscopy, we analytically derived expressions for uncertainty for parameters, such as temperature, laser frequency, and ringdown time deviation, from the model equation. The uncertainties that are due to systematic errors in a practical cavity ringdown system were assessed through an experimental study of the PQ(35) transition in an A band of molecular oxygen. We found that, except for the line strength that is regarded as a reference value independent of the measurement, the laser frequency jitter is the largest uncertainty source in the system. Some practical requirements for minimizing the uncertainty in concentration measurements are discussed. We also demonstrated determination of the line strength of the PQ(35) transition line of oxygen to be 8.63(3) × 10Ȓ27 cm−1 with a relative uncertainty of less than 0.4%.

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