🌐EnglishEnglishDeutschFrançaisItalianoPolskiPortuguêsРусскийالعربيةفارسی한국어中文日本語EntityQ1455635· pop 15· linked from 111 articlessecond-harmonic generationAlso known as frequency doubling, SHGnonlinear optical processAvailable in 15 languagesFrançaisDeutsch日本語РусскийPortuguêsالعربيةBulgarianCatalanLithuanianConnectionsbirefringenceEntitynonlinear opticsEntityCategoriesNonlinear opticsSecond-harmonic generation