The world’s thinnest known optical crystal is here! boron nitride nanotubes

(The world’s thinnest known optical crystal is here! boron nitride nanotubes)

On the quartz plate, the edge rhombic boron nitride crystal with a density of only 1 to 3 microns is as slim as a cicada’s wing. Still, its energy effectiveness is 100 to 10,000 times more than that of traditional optical crystals. This is the thinnest recognized optical crystal worldwide developed by Chinese researchers. At the opening ceremony of the 2024 Zhongguancun Discussion forum Annual Satisfying held on April 25, this crystal was launched as a major success.

Academician Wang Enge of the Quantum Materials Scientific Research Center of the School of Physics of Peking University, Teacher Liu Kaihui of the Institute of Condensed Issue Physics and Materials Physics, and Hong Hao, a specially appointed associate researcher, and various other scientists have actually created a new crystal layout approach: by transforming each piece of rhombic boron nitride material at a certain angle like turning a Rubik’s Dice, the piled optical crystal can decrease the energy intake of laser travelling through and effectively produce the required laser.

(Boron Nitride BN Powder)

The crystal layout theory spearheaded by Chinese researchers is integrated with the preparation approach to successfully “slim down” the optical crystal to 1 to 3 microns. The density of traditional optical crystals remains in the millimeter to centimeter level.

The r & d team summarized this method as the interface angle concept of two-dimensional materials. “The application of this concept is expected to decrease the dimension of lasers to the micron level. Some materials that were impossible to make optical crystals in the past are likewise expected to find back to life by revolving the angle of product stacking,” Liu Kaihui told press reporters.

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(The world’s thinnest known optical crystal is here! boron nitride nanotubes)