非ひ線せん形けい光こう学がくMeaningsNoun1. nonlinear opticsOther spellings非ひ線せん型けい光こう学がくUsage share unknownKanji used非go against線line形shape光ray学studyKanji in other spellings型modelComposed of非ひ線せん形けいnon-linear; nonlinearNo-adjective光こう学がくopticsNoun