The world’s thinnest known optical crystal is here! mechanical properties of hexagonal boron nitride in pla

On the quartz plate, the edge rhombic boron nitride crystal with a density of only 1 to 3 microns is as thin as a cicada’s wing. Still, its power performance is 100 to 10,000 times higher than that of typical optical crystals. This is the thinnest well-known optical crystal worldwide invented by Chinese scientists. At the opening event of the 2024 Zhongguancun Discussion forum Yearly Fulfilling hung on April 25, this crystal was released as a major accomplishment.

Academician Wang Enge of the Quantum Products Science Center of the School of Physics of Peking College, Teacher Liu Kaihui of the Institute of Condensed Issue Physics and Materials Physics, and Hong Hao, a particularly assigned associate scientist, and other researchers have produced a new crystal design method: by transforming each item of rhombic boron nitride product at a details angle like turning a Rubik’s Dice, the piled optical crystal can reduce the power consumption of laser travelling through and efficiently create the called for laser.


(Boron Nitride BN Powder)

The crystal layout theory spearheaded by Chinese scientists is combined with the prep work approach to successfully “lose weight” the optical crystal to 1 to 3 microns. The thickness of conventional optical crystals is in the millimeter to centimeter level.

The r & d group summarized this approach as the user interface angle concept of two-dimensional products. “The application of this theory is expected to lower the size of lasers to the micron degree. Some products that were difficult to make optical crystals in the past are also expected to find back to life by turning the angle of material stacking,” Liu Kaihui informed reporters.

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