Chiral photons have become a research hotspot. Analysis of main product segments

Photon is the basic particle that transmits electromagnetic interaction. Chirality refers to the phenomenon that an object and its mirror image cannot overlap. Chiral photon refers to the particle that transmits electromagnetic interaction that cannot overlap with its mirror image. Chiral photons play an important role in the advancement of technologies such as optical chips and optoelectronic devices. They can also be used to prepare high-end optical instruments and be used in fields such as artificial intelligence and military industry and national defense. Therefore, research on its technology and applications has attracted attention.

According to the “Chiral Photonics Industry In-depth Market Research and Investment Strategy Suggestions Report 2021-2025” released by the Industrial Research Center, chiral photonics industry The important characteristic of chiral is symmetry, its material structure is similar to DNA double helix, chiral photons have optical rotation phenomenon, and the characteristics of circularly polarized light are significant. Compared with ordinary photonic crystals, chiral photonics are flexible. Due to the unique photonic band gap, the chiral photonic structure has the ability to modulate light at different scales and responds quickly to external light, electricity, magnetism, heat, pressure, etc. . Taking advantage of these special characteristics, chiral photons can be used to prepare photonic chips, optoelectronic devices, optical instruments and other products with new functions, and therefore have become a research hotspot in the field of optoelectronics.

An increasing number of types of chiral photons have been developed, and nanocellulose is one of them. Nanocellulose can construct self-assembled chiral photonic structures with obvious cost-effectiveness. Nanocellulose is extracted from natural cellulose. Its diameter is generally less than 100nm. It has fibers and crystals. It has the characteristics of high mechanical strength, high elastic modulus, and biodegradability. Common nanocelluloses that can be used in the field of chiral photonics mainly include hydroxypropyl cellulose, ethyl cellulose, cellulose nanocrystals (CNC), etc. Among them, cellulose nanocrystals are the most representative.

Graphene can also be used in the field of chiral photonics. It can be used to prepare graphene chiral liquid crystal composite materials, which can achieve large-scale processing and production. This type of material has unique optical properties, such as reducing the blue phase driving voltage and excellent optical anisotropy. , fast response speed, etc. my country’s graphene research and production capabilities continue to improve, but graphene application research and development is relatively weak. The application of graphene in the field of chiral photonics is conducive to the advancement of optical technology, and is also conducive to the development and growth of the graphene application market.

Industry analysts said that cholesteric liquid crystals (CLCEs) are also a chiral liquid crystal material that can achieve bionic color change and intelligent color change. , which functions like the outer skin of a chameleon. Cholesteric liquid crystal is a chiral photonic crystal with a periodic spiral superstructure. It can selectively reflect visible light of different wavelengths to achieve color change. It is also sensitive to external light sources, electricity, magnetism, heat, force, etc., and after being stimulated Can change color accordingly. Taking advantage of this function, cholesteric liquid crystals have huge application potential in the fields of optical instruments, artificial intelligence, military industry and national defense. Overall, the development and utilization of chiral photons is of great value.