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/1 T)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.
Cotton-Mouton effect of molecular oxygen: A novel measurement
ZAVATTINI, Guido
1998
Abstract
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/1 T)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.File in questo prodotto:
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