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Proceedings Paper

Cavity-enhanced frequency modulation absorption spectroscopy of the sixth overtone band of nitric oxide
Author(s): Joakim Bood; Andrew McIlroy; David L. Osborn
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Paper Abstract

We apply cavity-enhanced frequency modulation absorption spectroscopy (also known as NICE-OHMS) to perform highly sensitive high-resolution spectroscopy of the sixth overtone band of NO near 797 nm. Our spectrometer provides a sensitivity corresponding to a minimum detectable absorption coefficient of 2.5×10-10 cm-1Hz-1/2, which is ~80 times worse than the ideal shot-noise limited sensitivity. Line intensities are measured for the R(7.5), R(9.5), and R(10.5) rovibrational lines in the 2Π 1/2- 2Π1/2 sub-band. From these line intensities we calculate a total vibrational band intensity of 2.2×10-6 cm-2atm-1 (at 296 K) and a vibrational transition dipole moment of 4.1 μDebye. The measured values are estimated to be accurate to within ±25%.

Paper Details

Date Published: 19 June 2003
PDF: 12 pages
Proc. SPIE 4962, Manipulation and Analysis of Biomolecules, Cells, and Tissues, (19 June 2003); doi: 10.1117/12.478910
Show Author Affiliations
Joakim Bood, Sandia National Labs. (United States)
Andrew McIlroy, Sandia National Labs. (United States)
David L. Osborn, Sandia National Labs. (United States)

Published in SPIE Proceedings Vol. 4962:
Manipulation and Analysis of Biomolecules, Cells, and Tissues
Dan V. Nicolau; Joerg Enderlein; Robert C. Leif; Daniel L. Farkas, Editor(s)

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