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New method for controlling the polarization of light

Researchers have made a significant breakthrough in controlling the polarization of light, a crucial property for various applications such as augmented reality, data storage and encryption. The new method, developed by a team of scientists, uses liquid crystals (LC) to create holograms capable of manipulating the polarization of light at different points. This represents significant progress compared to existing methods.

The traditional approach to vector holography, which involves manipulating both the polarization and intensity of light, often relies on metasurfaces – structures designed to control light waves. However, these metasurfaces are static and lack the flexibility needed for dynamic photonics applications.

This new method overcomes this limitation by employing a single layer of LC. LCs are known for their ability to change their properties under an electric field, making them ideal for dynamic control. Researchers developed a new coding method that allows LCs to display versatile and tunable vector holography, where polarization and amplitude can be independently controlled at different positions.

This innovation has the potential to revolutionize various fields. For example, it could lead to more secure encryption methods by enabling the creation of complex, dynamic holograms that are difficult to reproduce. Additionally, it could pave the way for higher resolution displays and even active holographic video projections.

The research team is optimistic about the real impact of their work. They believe that this new method, requiring no complex manufacturing processes, could easily be integrated with existing technologies, opening up exciting possibilities for the future of displays, information encryption and metasurface applications.

This is an important development in the field of optics and its potential applications are vast. The researchers’ work highlights the power of combining advanced materials with innovative design techniques to achieve breakthroughs with far-reaching consequences.

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The references

DO I

10.1186/s43593-024-00061-x

Original source URL

https://doi.org/10.1186/s43593-024-00061-x

Funding information

This work was supported by the National Key Research and Development Program of China (Nos. 2022YFA1405000 and 2021YFA1202000); National Natural Science Foundation of China (No. 62375119); Natural Science Foundation of Jiangsu Province (No. BK20212004); Basic Research Program of Jiangsu Province (BK20232040); Basic Research Funds for Central Universities (021314380231); CAST Elite Young Scientist Sponsorship Program (2022QNRC001).

About eLight

eLight will mainly publish the finest manuscripts, broadly covering all sub-fields of optics, photonics and electromagnetics. In particular, we focus on emerging topics and interdisciplinary research related to optics.



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