Abstract

We report the use of infrared diode lasers in a diffuse reflection geometry for detection of the cyclotetramethylentetranitramine (HMX) combustion product CO permeating through a silicon carbide bed. We find that infrared emission and transient absorption are coincident with these pressure waves and demonstrate the feasibility of these diagnostics for detecting molecular species in hostile environments. We conclude from the experimental evidence that macroscopic convective heating may play a limited role in the deflagration-to-detonation transition (DDT) of porous explosives.

Ultrafast-laser-absorption spectroscopy in the mid-infrared for single-shot, calibration-free temperature and species measurements in low- and high-pressure combustion gases

Ryan J. Tancin and Christopher S. Goldenstein
Opt. Express 29(19) 30140-30154 (2021)

Temperature measurement technique for high-temperature gases using a tunable diode laser

Ronald K. Hanson and Patricia Kuntz Falcone
Appl. Opt. 17(16) 2477-2480 (1978)

Extension of wavelength-modulation spectroscopy to large modulation depth for diode laser absorption measurements in high-pressure gases

Hejie Li, Gregory B. Rieker, Xiang Liu, Jay B. Jeffries, and Ronald K. Hanson
Appl. Opt. 45(5) 1052-1061 (2006)

Quantum cascade laser absorption sensor for carbon monoxide in high-pressure gases using wavelength modulation spectroscopy

R. M. Spearrin, C. S. Goldenstein, J. B. Jeffries, and R. K. Hanson
Appl. Opt. 53(9) 1938-1946 (2014)

Diode-laser wavelength-modulation absorption spectroscopy for quantitative in situ measurements of temperature and OH radical concentration in combustion gases

Tetsuya Aizawa
Appl. Opt. 40(27) 4894-4903 (2001)