High Two-Beam Coupling Coefficients of Monolithic Small Molecule at Low Electric Field

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2004,（10）
• 页码范围: 1958-1960
• 页数: 3页
• 语种: 英文

摘要

A novel full-functional photorefractive small molecular material, (9-ethyl-9H-carbazol-3-ylmethylene)-(4-nitro-phenyl)-amine (ECYENPA), was synthesized and its photorefractivity was studied by two-beam coupling experiments at a wavelength of 632.8nm. The glass transition temperature of ECYENPA, as low as -5℃, results in the chromophore being orientated easily at room temperature. High two-beam coupling coefficient was obtained to be 232cm-1 at an electric field of 44.6 V/μm.