Abstract
Continuous-wave self-deflection of an asymmetrical laser beam, with a deflection angle up to eight diffraction widths, and strong attenuation of the on-axis radiation were achieved in a short sodium-vapor cell. We determined that the nonlinear refractive index Δn varied almost linearly with intensity I, Δn ≈ n2I, with n2 ~ −10−7 cm2/W at ~200°C and intensities less than 220 W/cm2.
© 1988 Optical Society of America
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