题目内容
In 1917, （ ）reinterpreted the theory of "the interaction between light and matter".
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After the atoms absorb energy, they can achieve a transition from a low energy level to a high energy level.
Atoms fall back from a high energy level to a low energy. When they fall back, they release energy. This energy is emitted in the form of （ ）, and light is produced.
The first laser was developed by Mayman of the United States in （ ）.
In 1958, Towns and Arthur Show Low proposed the "Laser Principle" through experiments and won the ( )of 1964.
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