Refractive index variation measurements of fluids using common-path Zeeman interferometry Kim, Yong Kee ; Trolinger, J. D. ; Reddy, B. R. ; Lal, R. B. Abstract Publication: Journal of Modern Optics Pub Date: August 1998 DOI: 10.1080/09500349808230658 Bibcode: 1998JMOp...45.1637K