Abstract

The Faraday effect was observed in the far-infrared spectrum of NO₂ for what is believed to be the first time. A systematic investigation of the magneto-optical signal as a function of the uncrossing angle between the polarizers was performed. Differences from similar experiments performed in the infrared and the visible regions were encountered. Moreover, a fit of the experimental data allowed calculation of the difference in the real and the imaginary terms of the refractive index for $\mathrm{\Delta }{M}_F=+1$ and $\mathrm{\Delta }{M}_F=-1$ multiplets.

© 1997 Optical Society of America

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