Yuri Denisyuk’s scientific work dealt primarily with physical optics, most notably holography. In 1962 Denisyuk invented the method of image recording in three-dimensional environments allowing one to save information about phase, amplitude, and the spectral structure of the wave coming from an object. These holograms can be produced using a typical beam of white light. This was determined by the government to be a scientific discovery, and was registered with the USSR State Committee on Inventions and Discoveries under №88 as of February 1, 1962 along with the following statement: “The established is an unknown before phenomenon of spatial distortion-free colored image object occurrence under illumination from the three-dimensional element of the transparent material medium, in which the density distribution of matter matches the intensity extension of standing-wave field, which are formed around the object at radiated emission scattering on it”