Low-Cost Compact Magnetometers for Air and In-Water Anti Submarine Warfare (ASW) Navy SBIR FY2010.2 Sol No.: Navy SBIR FY2010.2 Topic No.: N102-134 Topic Title: Low-Cost Compact Magnetometers for Air and In-Water Anti Submarine Warfare (ASW) Proposal No.: N102-134-1248 Firm: Southwest Sciences, Inc. 1570 Pacheco Street, Suite E-11 Santa Fe, New Mexico 87505 Contact: David Hovde Phone: (513) 272-1323 Web Site: http://www.swsciences.com Abstract: Magnetic anomaly detection (MAD) is an important component of anti-submarine warfare. This Phase I SBIR project will investigate a low-cost, high sensitivity sensor for both sea and airborne antisubmarine warfare. We recently demonstrated high sensitivity using magnetometers based on nonlinear magneto-optical rotation of the polarization of a laser as it propagates through an atomic vapor. By adopting less-expensive components it is possible to substantially reduce the cost of the sensor, but this requires changing the operating principles. The performance of critical sub-assemblies will be tested to determine if the magnetic sensitivity is maintained. An estimate of the size, weight, power, performance and cost of a fully engineered device will be made based on the results of the Phase I investigation. In the Phase I Option, a method will be devised and tested for constructing the magnetometer to avoid any dead zone. Benefits: Inexpensive magnetometers with good sensitivity, low mass and low power consumption could play an important role future anti-submarine warfare and counter-mine activities. The main role is to protect ships from attack by locating threats and preempting them. Civilian application for magnetometers include mineral exploration and buried object detection. Emerging applications include magnetic imaging and medical applications. Return