Abstract

The absorption spectra of three hydrazines and four of their air-oxidation products were measured in the 9–12-μm spectral region with a Fourier transform infrared (FTIR) spectrometer with a 0.05-cm−1 resolution to determine absorption coefficients at CO2 and tunable diode laser wavelengths. The measurements agreed well with published CO2 laser determinations for many of the absorption coefficients, except where the published values are thought to be in error. The coefficients were then used to estimate the sensitivity for remote detection of these gases using CO2 and tunable diode lasers in long-path differential absorption measurements.

© 1984 Optical Society of America

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