National Geographic : 1966 Dec
EKTA(HRUME(ABOVE) BY UHOWARD HSUMUREK;KOUAcHOuMt BY tuWIN U. BRULNINB! ) m. . First to develop a laser-in 1960-Dr. Theodore H. Maiman inspects a crystal rising from a crucible at the Korad Corporation in Santa Monica, California, which he heads. Scores of crystal materials, as well as gases and liquids, have been made to give off laser light. Crimson energy, compacted into a pen cil-thin beam, shoots from a laser of man made ruby shown with part of its reflect ing shield lifted away. A flashing xenon tube, spiraling around the ruby crystal rod, pumps energy into the laser. After each burst of coherent light, a pulse laser must be recharged.