发明授权
US06220914B1 Method of forming gated photocathode for controlled single and multiple electron beam emission
失效
形成用于受控单电子束和多电子束发射的门控光电阴极的方法
- 专利标题： Method of forming gated photocathode for controlled single and multiple electron beam emission
- 专利标题（中）： 形成用于受控单电子束和多电子束发射的门控光电阴极的方法
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申请号： US09449201申请日： 1999-11-24
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公开(公告)号： US06220914B1公开(公告)日： 2001-04-24
- 发明人: Kim Y. Lee , Tai-Hon Philip Chang , Marian Mankos , C. Neil Berglund
- 申请人： Kim Y. Lee , Tai-Hon Philip Chang , Marian Mankos , C. Neil Berglund
- 主分类号： H01J902
- IPC分类号： H01J902
摘要：
A photocathode having a gate electrode so that modulation of the resulting electron beam is accomplished independently of the laser beam. The photocathode includes a transparent substrate, a photoemitter, and an electrically separate gate electrode surrounding an emission region of the photoemitter. The electron beam emission from the emission region is modulated by voltages supplied to the gate electrode. In addition, the gate electrode may have multiple segments that are capable of shaping the electron beam in response to voltages supplied individually to each of the multiple segments.
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