It is employed in many consumer products, including supermarket checkout scanners, compact disc (CD) and digital video disc (DVD) players and writers, and laser pointers. As a commercial product, the laser is used for fiber-optic communications. Laser surgery, particularly laser eye surgery, has become an important medical procedure. The military has developed weapons systems using lasers and has explored the use of X-ray masers in antimissile defense systems. The status that Townes gained from his invention allowed him to influence public policy. Townes was a founding member of the Jasons, a group of scientists that provides advice to the Department of Defense, the Department of Energy, and the U.S.
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