| 碱锑光电阴极光电发射特性的Monte-Carlo数值模拟 |
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| 引用本文： | 潘栋 牛憨苯. 碱锑光电阴极光电发射特性的Monte-Carlo数值模拟[J]. 光子学报, 1996, 25(4): 301-307 |
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| 作者姓名： | 潘栋 牛憨苯 |
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| 作者单位： | 1. 中国科学院半导体所 100083;2. 中国科学院西安光学精密机械研究所 西安 710068 |
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| 基金项目： | 国家自然科学基金、国家攀登计划 |
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| 摘 要： | 基于非直接跃迁模型,用Monte-Carlo方法模拟了光电子在K2CsSb光电阴级中的输运过程,得到了和实验结果较为一致的量子产额谱、电子能谱及阴极的时间响应特性.K2CsSb的时间响应特性计算表明薄阴极的时间响应半宽度在20～100fs左右.文中还计算了K2CsSb阴极的导带和价带态密度.
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| 关 键 词： | 碱锑光电阴极 光电发射 Monte-Carlo数值模拟 |
| 收稿时间： | 1995-02-25 |
MONTE-CARLO SIMULATION OF PHOTOELECTRON TRANSPORT IN ALKALI ANTIMONIDE PHOTOCATHODES |
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| Pan Dong,Niu Hanben. MONTE-CARLO SIMULATION OF PHOTOELECTRON TRANSPORT IN ALKALI ANTIMONIDE PHOTOCATHODES[J]. Acta Photonica Sinica, 1996, 25(4): 301-307 |
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| Authors: | Pan Dong Niu Hanben |
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| Affiliation: | Xi’an Institute of Optics and Precision Mechanics, Academia Sinica, Xi’an 710068 |
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| Abstract: | Based on nondirect transition model,Monte-Carlo method has been used to simulate the transport of photoelectrons in alkali antimonide photocathode.The quantum yield,the energy distribution and transit time spread(TTS)have been obtained,which have good agreement with the measured results.Computed results indicate that the TTS of K2SbCs photocathode can be in order of 20～100fs.Meanwhile,the state densities of valence band and conduction band have been obtained. |
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| Keywords: | K2SbCs photocathode Photoelectrons emission Monte-Carlo numerical simulation |
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