| 用于超短激光脉冲检测的新型光电发射薄膜 |
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| 引用本文： | 吴锦雷,刘惟敏,董引吾,吴全德.用于超短激光脉冲检测的新型光电发射薄膜[J].物理学报,1994,43(9):1553-1558. |
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| 作者姓名： | 吴锦雷 刘惟敏 董引吾 吴全德 |
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| 作者单位： | 北京大学无线电电子学系;北京大学无线电电子学系;北京大学无线电电子学系;北京大学无线电电子学系 |
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| 基金项目： | 国家自然科学基金与高等学校博士学科点专项科研基金资助的课题. |
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| 摘 要： | Ａｇ－Ｂａ－Ｏ薄膜是金属超微位子埋藏于半导体基质中的全新型光电转换薄膜。它不含碱金属，有很好的稳定性，可以在大气中存放，再置入真空系统中不需要激话，就能产生足以检测皮秒级激光脉冲信号的光电子发射。在激光作用下有特殊的灵敏度。这种光电转换薄膜有很好的应用前景。
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NEW PHOTOEMISSIVE THIN FILM FOR ULTRASHORT DURATION LASER PULSE DETECTION |
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| WU JIN-LEI,LIU WEI-MIN,DONG YIN-WU and WU QUAN-DE.NEW PHOTOEMISSIVE THIN FILM FOR ULTRASHORT DURATION LASER PULSE DETECTION[J].Acta Physica Sinica,1994,43(9):1553-1558. |
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| Authors: | WU JIN-LEI LIU WEI-MIN DONG YIN-WU and WU QUAN-DE |
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| Abstract: | A kind of photoemissive thin films which can be exposed to or stored in the atmosphere and can be used again in a vacuum system without any activation process for laser pulse detection is presented. They are different from usual photoemissive materials, since they do not contain alkali elements. They consist of metallic oxide thin film or other material thin film embedded with metallic ultrafine particles. A main interesting material is barium oxide thin film embedded with Ag ultrafine particles. The phenomenon that photoemissive sensitivity of this kind of ultrafine particle thin film rose up under the action of laser pulses was discovered. |
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