An experimental demonstration of a noninvasive optical probe of magnetic fields is presented. The technique used is magnetic rotation spectroscopy of the b (1)Sigma(g)(+) - X(3)Sigma(g)(-) band of oxygen near 760 nm. Ambient concentrations of oxygen at atmospheric pressure are sufficient to observe substantial signals. Tn addition, a diode laser is used as the light source, making this a simple and compact measurement possibility. (C) 1998 Optical Society of America. [References: 13]
展开▼
