Kerr effect of molecular oxygen at λ=1064 nm

F. Bielsa; R. Battesti; C. Robilliard; G. Bialolenker; G. Bailly; G. Trénec; A. Rizzo; C. Rizzo

doi:10.1140/epjd/e2005-00243-1

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2024 Impact factor 1.5

Atomic, Molecular, Optical and Plasma Physics

Eur. Phys. J. D 36, 261-269 (2005)
https://doi.org/10.1140/epjd/e2005-00243-1

Experiment and theory

F. Bielsa¹, R. Battesti², C. Robilliard¹, G. Bialolenker¹^,3, G. Bailly¹, G. Trénec¹, A. Rizzo⁴ and C. Rizzo¹^a

¹ Laboratoire Collisions, Agrégats, Réactivité, IRSAMC, CNRS/UPS, 31062 Toulouse, France
² Laboratoire National des Champs Magnétiques Pulsés, CNRS/UPS/INSA, 31432 Toulouse, France
³ Nuclear Research Center Negev, 84190 Beer-Sheva, Israel
⁴ Istituto per i Processi Chimico Fisici, CNR, 56124 Pisa, Italy

Corresponding author: ^a carlo.rizzo@irsamc.ups-tlse.fr

Received: 8 March 2005
Published online: 30 August 2005

Abstract

We report a new measurement of the Kerr effect of molecular oxygen at $\lambda = 1064$ nm. The experimental value reported for the anisotropy of the index of refraction $\Delta n_u^l$ , $(3.15\pm0.85)\times 10^{-25}$ m² V^-2 atm^-1, is in good agreement with the value of 3.4 $\times 10^{-25}$ m² V^-2 atm^-1 obtained via an ab initio calculation. We show that the dependence of the effect on the pressure is not linear because of the presence of a collision-induced absorption band around 1060 nm due to the transition from the $X^3 \Sigma^-_g$ ground state to the $^1\Delta_g$ state. We also give the value of the quadratic anisotropy $\Delta n_u^q$ $(-1.03\pm0.68)\times10^{-25}$ m² V^-2 atm^-2. We finally compare our ab initio theoretical and experimental results with previous existing data.