Nonlinear optical effect of organic crystal heterostructures of benzylidene-aniline derivatives by two-step molecular-beam heteroepitaxy

Yamashiki, Tomoya; Fukuda, Seiji; Tsuda, Keiji; Gotoh, Tetsuya
July 2003
Applied Physics Letters;7/28/2003, Vol. 83 Issue 4, p605
Academic Journal
A nonlinear optical waveguide with organic crystals based on 4′-nitrobenzyliden-3-acetamino-4-methoxyaniline (MNBA) and its derivative was fabricated by organic molecular-beam epitaxy and operated as an electro-optic (EO) device. It has been proved that an EO coefficient r[sub11] of MNBA significantly depends on the thickness of the 4′-nitrobenzyliden-3-ethylcarbonylamino-4-methoxyaniline (MNBA–Et) homoepitaxial layer. Insertion of a thicker MNBA–Et homoepitaxial layer enlarges r[sub11] of MNBA heteroepitaxial layer from 30 to more than 150 pm/V.


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