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Observation of holographic focusing effects in a carbazole photorefractive film without a bias field |
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| Authors: | Ting Fan Yang Zhang JinSong Liu YaKe Chen ShiXiong Liu |
| Institution: | (1) Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China |
| Abstract: | The holographic focusing effects of light in a carbazole photorefractive film at 632.8 nm wavelength were observed without applying a bias field, owing to the two-beam coupling process in the material. The material was prepared from the mixture of 3-formyl-N-vinylcarbazole (99 wt%) and 2,4,7-trinitro- 9-fluorenone (1 wt%). |
| Keywords: | self-focusing photorefractive effect carbazole derivatives |
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