First measurement of the magnetic birefringence of helium gas

Using a sensitive ellipsometer we have measured the Cotton-Mouton constant of helium at 514.5 nm. We have found that, at 1 atm and 0°C,C CM(He) = (3.5 ± 0.7) × 10 -20 G -2 cm -1. Our experimental value is compatible within the errors with previous theoretical calculations.

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Bibliographic Details
Published in:Physics letters. A 1991-07, Vol.157 (2), p.125-128
Main Authors: Cameron, R., Cantatore, G., Melissinos, A.C., Semertzidis, Y., Halama, H., Lazarus, D., Prodell, A., Nezrick, F., Micossi, P., Rizzo, C., Ruoso, G., Zavattini, E.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of bulk materials and thin films
Physics
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Summary:Using a sensitive ellipsometer we have measured the Cotton-Mouton constant of helium at 514.5 nm. We have found that, at 1 atm and 0°C,C CM(He) = (3.5 ± 0.7) × 10 -20 G -2 cm -1. Our experimental value is compatible within the errors with previous theoretical calculations.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(91)90083-K