Holographic imaging properties of standing and traveling waves of intensity of fields of light scattered by objects

摘要

The phenomenon of imaging properties of a material model of the light intensity waves is analyzed in its various manifestation. (1) In the field of static intensity waves two types of records are considered: volume hologram and selectogram. Unlike the volume hologram, selectogram is not so sensitive to the degree of temporal coherence of recording light. (2) In the field of holographic recording of moving patterns of intensity waves several methods are considered. Doppler hologram presents the dynamic record of the moving pattern of intensity waves resulted from the interference of a reference wave with an object wave that being scattered from the moving object experienced the Doppler shift of its frequency. This hologram is capable of reconstructing the moving image of the object. Second Harmonic Generated hologram (SHG hologram) is recorded in a nonlinear material endowed with the second-order nonlinearity. It is capable of forming high-quality images in the light whose frequency is doubled. The main distinctive feature of SHG hologram is its extremely fast time response that permits one to realize superfast switches. Dynamic x~((2)) hologram is in fact a particular case of the SHG hologram when the frequencies of an object and reference waves are different.