FIG 3 (IMAGE) Compuscript Ltd Caption Fig. 3 (a) High-resolution and high-sensitivity molecular spectroscopy of trace amount of N2O. (b) Comparison of the CRDS measurements with the nominal concentrations of N2O (1-10 ppb). Credit OEA Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.