Answer
Yes, Aleksandr Prokhorov is regarded as an influential figure in physics. He is best known for his work on the maser, which he co-invented with Charles Townes and Nikolai Basov. The maser is a device that amplifies microwaves using stimulated emission of radiation. It is the predecessor to the laser, which amplifies light. Prokhorov also made significant contributions to the development of quantum electronics and Theory of lasers.