Abstract
An experimental demonstration of a noninvasive optical probe of magnetic fields is presented. The technique used is magnetic rotation spectroscopy of the b 1Σg + - X 3Σg - band of oxygen near 760 nm. Ambient concentrations of oxygen at atmospheric pressure are sufficient to observe substantial signals. In addition, a diode laser is used as the light source, making this a simple and compact measurement possibility.
© 1998 Optical Society of America
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