Tumoricidal Effect of Laser Energy on Experimental and Human Malignant Tumors

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Abstract
LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. Amplification itself may be characterized as a controlled release of stored energy. Townes and Schawlow developed the theory of the optical maser or laser in 1958. T. H. Maiman, in May, 1960, built the first operational solid-state laser utilizing a synthetic ruby crystal. As a first step in ruby laser operation, capacitor banks are charged with electric energy to provide an intense, brief light flash from powerful xenon-arc lamps. Trivalent chromium atoms in the ruby crystal whose end faces have been highly silvered, absorb and reradiate energy . . .