Mid-infrared dual frequency comb spectroscopy for combustion analysis from 2.8 to 5 μm

Amanda S. Makowiecki, Daniel I. Herman, Nazanin Hoghooghi, Elizabeth F. Strong, Ryan K. Cole, Gabe Ycas, Fabrizio R. Giorgetta, Caelan B. Lapointe, Jeffrey F. Glusman, John W. Daily, Peter E. Hamlington, Nathan R. Newbury, Ian R. Coddington, Gregory B. Rieker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Scopus citations


We demonstrate the application of mode-locked mid-infrared dual frequency comb spectroscopy for combustion analysis. With two settings of the same dual-comb system, the measurement spans 1500 cm-1 from 2.8 to 5 μm with 0.0067 cm-1 (200 MHz) point spacing, or almost a quarter-million discrete comb modes. Using this broadband spectrometer, we quantify the pyrolysis and smoldering combustion of wood samples. Specifically, we measure 20-second time-resolved mole fractions of CH4, H2O, two isotopologues of CO2 (12C16O2, 13C16O2), two isotopologues of CO (12C16O, 13C16O), ethane, formaldehyde, methanol, formic acid, as well as gas temperature directly above radiatively heated wood samples. The combination of the fine spectral resolution and the broad bandwidth of the dual-comb spectrometer allows for precise separation of absorption signatures of individual molecules from the congested spectra.
Original languageEnglish (US)
Title of host publicationProceedings of the Combustion Institute
PublisherElsevier BV
Number of pages9
StatePublished - Apr 10 2021
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Mid-infrared dual frequency comb spectroscopy for combustion analysis from 2.8 to 5 μm'. Together they form a unique fingerprint.

Cite this