Sergei Vasilyevich Bogdanov (born 2.08.1921) is a Soviet physicist and a corresponding member of the USSR Academy of Sciences (1979). He was born in Rostov-on-Don. He graduated from the Moscow Power Engineering Institute (1947). In 1951—63 he worked at the Physical Institute of the USSR Academy of Sciences, from 1963 he has been head of a laboratory at the Institute of Semiconductor Physics of the Siberian Branch of the USSR Academy of Sciences, and from 1969 also professor at Novosibirsk University. His work is in the fields of solid-state physics, acoustoelectronics and acousto-optics. He laid the foundations of the physics and the electronics of ceramic piezoelectric elements. He carried out a broad series of studies of the interaction of high-frequency ultrasonic waves with charge carriers and with coherent optical radiation in solids and in layered systems.