PACS:42.55.Lt, 42.60.Jf, 42.40.My, 42.30.Wb (all) DOI:10.1070/PU1974v017n03ABEH004144 URL: https://ufn.ru/en/articles/1974/3/j/ Citation: Shustin O A, Korchazhkih V V, Chernevich T G, Yakovlev I A "Lecture demonstrations with an argon laser" Sov. Phys. Usp.17 439–440 (1974)