発見！
２０１５年、コロナがまだ流行する４年まえに
コロナウイルスだけを殺し、人間の皮膚には安全なレーザーができていた：
そのときはまだそういう作用があることはしられていなかったのだろう。
いまからでも遅くはないだろう。
DISCOVERY !
2015, four years before corona was still prevalent.
A laser that kills only the coronavirus and is safe for human skin had been created.
At that time, it was probably not known that it worked like that.
It's not too late.
一部転載：
. 2015 May 1;40(9):2127-9. doi: 10.1364/OL.40.002127.
Single-pass UV generation at 222.5 nm based on high-power GaN external cavity diode laser
N Ruhnke, A Müller, B Eppich, R Güther, M Maiwald, B Sumpf, G Erbert, G Tränkle
- Abstract
We demonstrate a compact system for single-pass frequency doubling of high-power GaN diode laser radiation. The deep UV laser light at 222.5 nm is generated in a β-BaB2O4 (BBO) crystal. A high-power GaN external cavity diode laser (ECDL) system in Littrow configuration with narrowband emission at 445 nm is used as pump source. At a pump power of 680 mW, a maximum UV power of 16 μW in continuous-wave operation at 222.5 nm is achieved. This concept enables a compact diode laser-based system emitting in the deep ultraviolet spectral range.