he collision-induced absorption of oxygen in the 540–650-nm wavelength region has been measured at a pressure range from 0 to 730 Torr at T = 294 K. Pressure-dependent cross sections of the 𝑋 3∑+𝑔 + 𝑋 3∑+𝑔 → a 1Δg(v = 0) + a 1Δg(v = 1) and 𝑋 3∑+𝑔 + 𝑋 3∑+𝑔 → a 1Δg(v = 0) + a 1Δg(v = 0) transitions have been determined by means of cavity-ringdown spectroscopy. Contributions of the overlapping γ and δ bands of O2 have been evaded, and Rayleigh extinction has been taken into account.
Founded in 1916, the Optical Society of America (OSA) was organized to increase and diffuse the knowledge of optics, pure and applied; to promote the common interests of investigators of optical problems, of designers and of users of optical apparatus of all kinds; and to encourage cooperation among them. The purposes of the Society are scientific, technical and educational.
The Optical Society of America brings together optics and photonics scientists, engineers, educators, and business leaders. OSA's membership totals 15,500 individuals from over 95 countries. Approximately 47% of the Society's members reside outside the United States.
