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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 15, Iss. 4 — Apr. 1, 1998
  • pp: 1278–1281

Cotton–Mouton effect of molecular oxygen: a novel measurement

F. Brandi, F. Della Valle, P. Micossi, A. M. De Riva, G. Zavattini, F. Perrone, C. Rizzo, and G. Ruoso  »View Author Affiliations

JOSA B, Vol. 15, Issue 4, pp. 1278-1281 (1998)

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A novel apparatus to measure small magnetic birefringences is described. It is based on a high-finesse Fabry–Perot cavity, to which a Nd:YAG laser is frequency locked, and on a 1.1-T permanent dipole magnet. We report the new measurement of the magnetic anisotropy of the refraction index (Cotton–Mouton effect) for molecular oxygen at λ=1064 nm,T=20 °C. Our result, Δn(O2)=(-2.29±0.08)10-12(B/1T)2(P/1 atm), is consistent with the existing theoretical predictions and falls in line with the previous experimental results taken at different wavelengths.

© 1998 Optical Society of America

OCIS Codes
(120.2130) Instrumentation, measurement, and metrology : Ellipsometry and polarimetry
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(210.3820) Optical data storage : Magneto-optical materials
(260.1440) Physical optics : Birefringence

F. Brandi, F. Della Valle, P. Micossi, A. M. De Riva, G. Zavattini, F. Perrone, C. Rizzo, and G. Ruoso, "Cotton–Mouton effect of molecular oxygen: a novel measurement," J. Opt. Soc. Am. B 15, 1278-1281 (1998)

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