Figure 2.
(a) Continuous measurement of H2O absorption profile while the gas cell temperature changes. (b) Slope coefficient calculated by the ratio of the amount of spectral shift to temperature change. (c) H2O absorbance spectra for the first and last measurements, showing a clear spectral shift due to the temperature change inside the MPC. (d) Measured slope coefficient defined as the ratio of the spectral shift to temperature change.