... To effectively control coherent light radiation fluxes, it was proposed to use regular spatial structures with periodic variations in refraction factor in three directions – photonic crystals. ... 3DPCU main unit; . ... To obtain 3D photonic crystals by the method of self-organization and ordering of colloidal nanoparticles in electrolyte solutions with subsequent fixation in an elastic gel matrix. ... Returned to Earth is the 3DPCU main unit with samples of the obtained photonic crystals. MAIN | ...