| 多碱光电阴极的红外延伸 |
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| 引用本文： | 张焕文.多碱光电阴极的红外延伸[J].光子学报,1990,19(3):277-281. |
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| 作者姓名： | 张焕文 |
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| 作者单位： | 中国科学院西安光机所 |
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| 摘 要： | 本文对延长多碱光电阴极长波阈的问题进行了探讨;对多碱光电阴极P型Na2KSb+本征K2Cssb+本征Cs3Sb的结构模型进行了印证;提出了工艺上应采取的措施。实验上获得了450μA/Lm的积分灵敏度;长波阈(峰值灵敏度的百分之一所对应的波长)为9400Å,当入射光波长为9900Å时仍有0.05mA/W的光电响应。
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| 关 键 词： | 光电阴极 |
| 收稿时间： | 1989-03-01 |
EXTENDING INFRARED RESPONSE OF MULTIALKALI PHOTOCATHODE |
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| Zhang HuanwenXian Institute of Optics and Precision Mechanics,Academia Sinica.EXTENDING INFRARED RESPONSE OF MULTIALKALI PHOTOCATHODE[J].Acta Photonica Sinica,1990,19(3):277-281. |
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| Authors: | Zhang HuanwenXian Institute of Optics and Precision Mechanics Academia Sinica |
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| Institution: | Xian Institute of Optics and Precision Mechanics, Academia Sinica |
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| Abstract: | Extending longwave threshold of multialkli photocathode has been discussed in this paper. The structure model of multialkali photocathode of P-type Na2Ksb + intrinsic K2CsSb + intrinsic Cs3Sb has been proposed. The integral sensitivity of 450 μA/Lm has been obtained in experiments. Its longwave threshold of 9400Å has been reached. It still is of 0.05 mA/W response for 9900 A wavelength. |
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| Keywords: | Photocathodes |
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