Line intensities of Co2 in the 2.0 micron region

The line intensities of the three δ-δ bands of CO₂ and their associated Π-Π hot bands in the 2.0 υ region have been measured using a combination of long optical paths and low sample pressures with high resolution (0.035 cm^-1). These intensities yield total band strengths of 0.200, 0.969, 0.288, 0.0017, 0.062 and 0.028 cm^-2 atm^-1 at 296 K for the 04⁰1-00⁰0, 12⁰1-00⁰0, 20⁰1-00⁰, 05¹1-01¹0, 13¹1-01¹0 and 21¹1-01 ¹0 bands, respectively. The rotationless dipole moment matrix element and the German-Wallis coefficients are also determined for each band.