THIS WEEK  

出　　处：《Beijing Review》2023年第52期3-11,共9页北京周报（英文版）

摘　　要：A BREAKTHROUGH Twisted Boron Nitride(TBN)crystal placed on a piece of fused silica at Peking University(PKU)in Beijing on December 15.The new type of ultrathin optical crystal,made by a team of PKU researchers,is the thinnest optical crystal currently known in the world,Wang Enge from the university's School of Physics told Xinhua News Agency.

关 键 词：PKU FUSED SILICA 

分 类 号：O7[理学—晶体学]