I thought I knew about perovskite. After all, it’s a mineral, and I spent my spring and summer writing about rocks and minerals for a Smithsonian project, didn’t I?
Apparently the researchers who figured that out have demonstrated it in an optically pumped laser. They’ll have to devise an electrically pumped laser to get anything commercially viable. But if that works out, who knows what new applications these inexpensive lasers will lead to?