Rotational temperature measurement of NO gas using two-photon excitation spectrum
- 1 April 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (4) , 2593-2595
- https://doi.org/10.1063/1.329067
Abstract
The rotational temperature of nitric oxide gas has been measured by means of a single-beam two-photon excitation spectrum method using a pulsed continuously tunable dye laser. The nitric oxide gas was enclosed at about 40 Torr in a quartz cell which was put in an electric oven. The NO γ (0-0) band and R11+Q21 branches were used to obtain the two-photon excitation spectrum. The rotational temperatures were determined using the fact that molecules are distributed in the rotational levels according to the Boltzmann law. The temperature range was from room temperature to about 470 K. Observed temperatures were in good agreement with cell temperatures which were obtained by using a thermocouple.This publication has 4 references indexed in Scilit:
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