Fig. 4: Variation of the DC-PTS amplitude with gas concentration.

The DC-PTS system shows an excellent linear response with an R2 value of 0.999. Inset: representative DC-PTS spectra of C2H2 with different concentrations.
The DC-PTS system shows an excellent linear response with an R2 value of 0.999. Inset: representative DC-PTS spectra of C2H2 with different concentrations.