Applied Physics Letters

Bures, Filip; May, Joshua C.; Biaggio, Ivan; Diederich, Francois, Extended conjugation and donor-acceptor substitution to improve the third-order optical nonlinearity of small molecules. Applied Physics Letters 2007, 90(25), 10.1063/1.2750396 .

Ludwig, M.; Hummel, R. E.; Morrone, A.; Chang, S.-S.. Applied Physics Letters 1993, 63, 2771 - 2773.