电场调制下聚合物光波导的放大自发辐射 |
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引用本文: | 张波,侯延冰,滕枫,刘小君.电场调制下聚合物光波导的放大自发辐射[J].中国科学(G辑),2009,39(11):1678-1680. |
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作者姓名: | 张波 侯延冰 滕枫 刘小君 |
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作者单位: | 北京交通大学光电子技术研究所, 发光与光信息技术教育部重点实验室, 北京 100044 |
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基金项目: | 教育部新世纪人才基金(编号: NCET-08-0717)、国家自然科学基金(批准号: 60777026, 60677007, 60825407)和“111”引智计划基金(编号: B08002)资助项目 |
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摘 要: | 报道了电场调制下的MEH-PPV光波导放大的自发辐射。我们设计制备结构为ITO/SiO2/MEH-PPV/SiO2/A1多层光波导。在脉冲激光激发下,MEH-PPV薄膜产生窄光谱的放大自发辐射。在器件的ITO和A1两极间加上同步电脉冲,随着脉冲电压的增加,电场诱导的激子离化增强,导致放大的自发辐射强度大幅度降低。这种机制可以用于增益可调聚合物光波导放大器和光开关。
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关 键 词: | MEH-PPV 放大的自发辐射 电场调制 激子离化 |
收稿时间: | 2009-07-23 |
修稿时间: | 2009-08-13 |
Amplified spontaneous emission in conjusated polymer wavesuide under modulation of electric field |
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Authors: | ZHANG Bo HOU YanBing TENG Feng LIU XiaoJun |
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Institution: | (Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology,Beijing Jiaotong University, Beijing 100044, China) |
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Abstract: | Amplified spontaneous emission (ASE) from poly 2-methoxy-5-(2'-ethylhexyl-oxy)-1, 4-pheny- lenevinylene](MEH-PPV) film modulated by an electric field are reported for the first time. The device with slab structure of ITOISiO21MEH-PPVISiO21A was designed and fabricated. With the increasing intensity of electric field, the dissociation of excitons enhances and the intensity of ASE descends. This mechanism can be applicable to gain tuneable waveguide amplifier and optical switch. |
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Keywords: | MEH-PPV amplified spontaneous emission electric field induced quenching exciton dissociation |
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