Polarization holography is a newly researched field that has gained traction with the development of tensor theory. It primarily focuses on the interaction between polarization waves and photosensitive materials. The extraordinary capabilities in modulating light amplitude, phase, and polarization have resulted in several new applications, such as holographic storage technology, multichannel polarization multiplexing, vector beams, and functional optical devices. Researchers have developed linear polarization holography, a component of the theory of polarization holography.
The researchers focus on the effect of various polarization changes on the reconstructed wave’s linear and nonlinear polarization characteristics under continuous exposure and during holographic recording and reconstruction.
The polarization modulation realized using these polarization characteristics exhibits unusual functionalities, rendering polarization holography an attractive research topic in many applications. The researchers provide new insights and broaden the application of polarization holography in more scientific and technological research fields.
In traditional holography, owing to the intensity distribution of two interference waves, including amplitude and phase, being recorded, only the same components of the polarization state of the two interference waves are considered. However, the actual polarization states of the two interference waves are ignored. In contrast, in polarization holography, the amplitude and phase of the two waves and the polarization states of the two waves are recorded.