Scattering cross-sections of common calibration gases measured by IBBCEAS technique

Abstract

In this study, incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) was used to measure scattering cross-sections of a few common gases in the 650–670nm spectral range relative to that of dry air. Precise measurements of scattering cross-sections of these calibration gases in the visible spectral range are important. The IBBCEAS system developed in the laboratory was calibrated with a low-loss optical window. The measurements made at 660nm were compared with previously measured cross-section values and found to be in good agreement with the existing measurements.