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Selective photoemission of Au photocathode

Yuan Zheng Liu Shen-Ye Cao Zhu-Rong Chen Tao Li Hang Zhang Hai-Ying Chen Ming Li Yun-Feng

Selective photoemission of Au photocathode

Yuan Zheng, Liu Shen-Ye, Cao Zhu-Rong, Chen Tao, Li Hang, Zhang Hai-Ying, Chen Ming, Li Yun-Feng
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  • A method for measuring the ultraviolet spectrum characteristic of Au photocathode has been put forward. Making use of the high gain characteristic of microchannel plate (MCP) and ultraviolet light, the frequency response of Au cathode has been studied by measuring the output current of Au coated MCP detector directly. Through measuring the response current of Au coated MCP detector between 200—340 nm, the selective photoemission of Au has been found, which had been found only for alkali metals. And the selective peak is at 5.72 eV, which can be explained by quantum mechanics theory.
    • Funds:
    [1]

    Liu X K 1980 Electronics of Cathode (Beijing:Science Press) p318 (in Chinese) [刘学殻 1980 阴极电子学 (北京:科学出版社) 第318页]

    [2]

    Li Y, Dan T R, Gao Y J, Cheng Y, Jiang D L, Tian J Q 2002 Infrared Technology 24 31 (in Chinese) [李 野、但唐仁、高延军、程 轶、姜得龙、田景全 2002 红外技术 24 31]

    [3]

    Wang H S, Li Y, Lu Y H, Tian J Q 1994 J. Changchun Inst. Opt. Fine Mech. 17 30 (in Chinese) [王海山、李 野、卢耀华、田景全 1994长春光学精密机械学院学报 17 30]

    [4]

    Ding L, Zhang Q J 1995 Chin. J. Sensors and Actuators 2 1 (in Chinese) [丁 力、张强基 1995 传感技术学报 2 1]

    [5]

    Rochau G A, Bailey J E, Chandler G A, Nash T J, Nielsen D S, Dunham G S, Garcia O F, Joseph N R, Keister J W, Madlener W J, Morgan D V, Moy K J, Wu M 2006 Rev. Sci. Instrum. 77 10E323

    [6]

    Harding E C, Darke R P 2006 Rev. Sci. Instrum. 77 10E312

    [7]

    Zou Y S, Liu Y F, Bai T Z 1996 Theory of Photoelectric Imaging (Beijing: Publishing House of Beijing Institute of Technology) p157 (in Chinese) [邹异松、刘玉凤、白廷柱 1996 光电成像原理 (北京:北京理工大学出版社) 第157页]

    [8]

    Yang J M, Ding Y N, Zheng Z J, Wang Y M, Zhang W H, Zhang J Y, Liu J Y, Shan B, Gao S C, Ren Y L, Liu X Q 2003 Acta Phys. Sin. 52 1427 (in Chinese) [杨家敏、丁耀南、郑志坚、王耀梅、张文海、张继彦、刘进元、山 冰、高盛琛、任有来、刘秀琴 2003 物理学报 52 1427]

    [9]

    Tian J S, Zhao B S, Wu J J, Zhao W, Liu Y Q, Zhang J 2006 Acta Phys. Sin. 55 3368 (in Chinese) [田进寿、赵宝升、吴建军、赵 卫、刘运全、张 杰 2006 物理学报 55 3368]

    [10]

    Kruschwitz C A, Wu M, Moy K, Rochau G 2008 Rev. Sci. Instrum. 79 10E911

    [11]

    Lowenstern M E, Harding E C, Huntington C M, Visco A J, Rathor G, Drake R P 2008 Rev. Sci. Instrum. 79 10E912

    [12]

    Henke B L, Knauer J P, Premaratne K 1981 J. Appl. Phys. 52 1509

    [13]

    Henke B L, Smith J A 1977 J. Appl. Phys. 48 1852

    [14]

    Liu Y Z, Wang Z C, Dong Y Q 1995 Electron Emitted and Photocathodes (Beijing:Publishing House of Beijing Institute of Technology) p150 (in Chinese) [刘元震、王仲春、董亚强 1995 电子发射与光电阴极 (北京:北京理工大学出版社) 第 150页] 〖15] Zhang X H, Zhao B S, Liu Y A, Miao Z H, Zhu X P, Zhao F F 2009 Acta Phys. Sin. 58 1779(in Chinese) [张兴华、赵宝升、刘永安、缪震华、朱香平、赵菲菲 2009 物理学报 58 1779]

    [15]

    Zhu J, Yang Z, Chang B K, Qiao J L, Zhang Y J 2009 Acta Phys. Sin. 58 5002(in Chinese) [朱 军、杨 智、常本康、乔建良、张益军 2009 物理学报 58 5002]

    [16]

    Wang Z N, Jiang M F, Ning Z Y, Zhu L 2008 Acta Phys. Sin. 57 6507(in Chinese) [王振宁、江美福、宁兆元、朱 丽 2008 物理学报 57 6507]

    [17]

    Lu Y H, Duan X B, Lü P, Zhang H J, Li H Y, Bao S N, He P M 2005 Acta Phys. Sin. 54 4319(in Chinese) [陆云豪、段效邦、吕 萍、张寒洁、李海洋、鲍世宁、何丕模 2005 物理学报 54 4319]

    [18]

    Zhang X J, Zhang J M, Xu K W 2006 Chin. Phys. 15 2108

  • [1]

    Liu X K 1980 Electronics of Cathode (Beijing:Science Press) p318 (in Chinese) [刘学殻 1980 阴极电子学 (北京:科学出版社) 第318页]

    [2]

    Li Y, Dan T R, Gao Y J, Cheng Y, Jiang D L, Tian J Q 2002 Infrared Technology 24 31 (in Chinese) [李 野、但唐仁、高延军、程 轶、姜得龙、田景全 2002 红外技术 24 31]

    [3]

    Wang H S, Li Y, Lu Y H, Tian J Q 1994 J. Changchun Inst. Opt. Fine Mech. 17 30 (in Chinese) [王海山、李 野、卢耀华、田景全 1994长春光学精密机械学院学报 17 30]

    [4]

    Ding L, Zhang Q J 1995 Chin. J. Sensors and Actuators 2 1 (in Chinese) [丁 力、张强基 1995 传感技术学报 2 1]

    [5]

    Rochau G A, Bailey J E, Chandler G A, Nash T J, Nielsen D S, Dunham G S, Garcia O F, Joseph N R, Keister J W, Madlener W J, Morgan D V, Moy K J, Wu M 2006 Rev. Sci. Instrum. 77 10E323

    [6]

    Harding E C, Darke R P 2006 Rev. Sci. Instrum. 77 10E312

    [7]

    Zou Y S, Liu Y F, Bai T Z 1996 Theory of Photoelectric Imaging (Beijing: Publishing House of Beijing Institute of Technology) p157 (in Chinese) [邹异松、刘玉凤、白廷柱 1996 光电成像原理 (北京:北京理工大学出版社) 第157页]

    [8]

    Yang J M, Ding Y N, Zheng Z J, Wang Y M, Zhang W H, Zhang J Y, Liu J Y, Shan B, Gao S C, Ren Y L, Liu X Q 2003 Acta Phys. Sin. 52 1427 (in Chinese) [杨家敏、丁耀南、郑志坚、王耀梅、张文海、张继彦、刘进元、山 冰、高盛琛、任有来、刘秀琴 2003 物理学报 52 1427]

    [9]

    Tian J S, Zhao B S, Wu J J, Zhao W, Liu Y Q, Zhang J 2006 Acta Phys. Sin. 55 3368 (in Chinese) [田进寿、赵宝升、吴建军、赵 卫、刘运全、张 杰 2006 物理学报 55 3368]

    [10]

    Kruschwitz C A, Wu M, Moy K, Rochau G 2008 Rev. Sci. Instrum. 79 10E911

    [11]

    Lowenstern M E, Harding E C, Huntington C M, Visco A J, Rathor G, Drake R P 2008 Rev. Sci. Instrum. 79 10E912

    [12]

    Henke B L, Knauer J P, Premaratne K 1981 J. Appl. Phys. 52 1509

    [13]

    Henke B L, Smith J A 1977 J. Appl. Phys. 48 1852

    [14]

    Liu Y Z, Wang Z C, Dong Y Q 1995 Electron Emitted and Photocathodes (Beijing:Publishing House of Beijing Institute of Technology) p150 (in Chinese) [刘元震、王仲春、董亚强 1995 电子发射与光电阴极 (北京:北京理工大学出版社) 第 150页] 〖15] Zhang X H, Zhao B S, Liu Y A, Miao Z H, Zhu X P, Zhao F F 2009 Acta Phys. Sin. 58 1779(in Chinese) [张兴华、赵宝升、刘永安、缪震华、朱香平、赵菲菲 2009 物理学报 58 1779]

    [15]

    Zhu J, Yang Z, Chang B K, Qiao J L, Zhang Y J 2009 Acta Phys. Sin. 58 5002(in Chinese) [朱 军、杨 智、常本康、乔建良、张益军 2009 物理学报 58 5002]

    [16]

    Wang Z N, Jiang M F, Ning Z Y, Zhu L 2008 Acta Phys. Sin. 57 6507(in Chinese) [王振宁、江美福、宁兆元、朱 丽 2008 物理学报 57 6507]

    [17]

    Lu Y H, Duan X B, Lü P, Zhang H J, Li H Y, Bao S N, He P M 2005 Acta Phys. Sin. 54 4319(in Chinese) [陆云豪、段效邦、吕 萍、张寒洁、李海洋、鲍世宁、何丕模 2005 物理学报 54 4319]

    [18]

    Zhang X J, Zhang J M, Xu K W 2006 Chin. Phys. 15 2108

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  • Received Date:  25 August 2009
  • Accepted Date:  28 October 2009
  • Published Online:  15 July 2010

Selective photoemission of Au photocathode

  • 1. (1)Reserch Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900,China; (2)Reserch Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900,China; College of Photoelectric Engineering, Chongqing University, Chongqing 400030, China

Abstract: A method for measuring the ultraviolet spectrum characteristic of Au photocathode has been put forward. Making use of the high gain characteristic of microchannel plate (MCP) and ultraviolet light, the frequency response of Au cathode has been studied by measuring the output current of Au coated MCP detector directly. Through measuring the response current of Au coated MCP detector between 200—340 nm, the selective photoemission of Au has been found, which had been found only for alkali metals. And the selective peak is at 5.72 eV, which can be explained by quantum mechanics theory.

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