UM researcher Vyacheslav ‘Slava’ Aranchuk demonstrates the Laser Multi-Beam Differential Interferometric Sensor system in his lab at the National Center for Physical Acoustics. Aranchuk has been issued a U.S. patent for the technology, which shows promise for locating buried landmines as well as a variety of nondestructive testing applications in noisy environments. Photo by Thomas Graning/Ole Miss Digital Imaging Services