Tunable diode laser absorption measurement of oxygen A-band line strengths

摘要

Line strength measurements and pressure-broadening coefficients for the oxygen A-band (b~1 Σ_g~+ ←X~3 Σ_g~-) at 13122 cm~(-1)using tunable diode laser absorption spectroscopy are reported. Diode lasers are scanned over individual lines and the absorption at different pressures is recorded; from these data the line strength for each transition is obtained. Average values for each transition are compared to those previously published, and in particular a comparison with the HITRAN database is presented. Line strengths reported here are 5%-10% lower than the HITRAN values.