| Original Articles |
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High Two-Beam Coupling Coefficients of Monolithic Small Molecule at Low Electric Field |
| ZHANG Jie;CHEN Zhi-Jian;HUANG Mao-Mao;LI Fu-Shan;WEI Qun;LIU Yi-Hong;GONG Qi-Huang |
| Key State Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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ZHANG Jie, CHEN Zhi-Jian, HUANG Mao-Mao et al 2004 Chin. Phys. Lett. 21 1958-1960 |
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Abstract 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°C, 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 44.6V/μm.
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| Keywords:
42.65.Hw
42.70.Nq
42.70.Jk
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Published: 01 October 2004
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| PACS: |
42.65.Hw
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(Phase conjugation; photorefractive and Kerr effects)
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42.70.Nq
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(Other nonlinear optical materials; photorefractive and semiconductor materials)
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42.70.Jk
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(Polymers and organics)
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