Vol. 2, issue 09, article # 22

Abstract:

The absorption spectrum of N₂O in the region 9100-9500 cm^-1 was studied using a highly sensitive intracavity laser spectrometer based on a neodymium glass laser. The threshold sensitivity and spectral resolution of the spectrometer are 10^-8 cm^-1 and 0.08 cm^-1, respectively. Two vibrational-rotational bands centered at 9219 and 9295 cm^-1 were recorded; these bands are formed by transitions to the Fermi-resonance polyad 4002. The spectroscopic constants of the high vibrational-rotational states of nitrous oxide were determined.

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