发明名称 |
Interference photocathode |
摘要 |
An interference photocathode includes a reflective substrate and interference layers disposed on said reflective substrate for selectively enhancing a first photoelectric yield of said photocathode when irradiated by radiation having a first wavelength relative to a second photoelectric yield of said photocathode when irradiated by radiation having a second wavelength. In one embodiment, the interference layers include a dielectric layer having a wavelength dependent effective thickness disposed on said reflective substrate such that said effective thickness for radiation having said first wavelength is an odd multiple of a quarter of said first wavelength and said effective thickness for radiation having said second wavelength is an even multiple of a quarter of said second wavelength. In another embodiment, the dielectric layer includes a layer of electrically conductive material and a dielectric material disposed between said layer of electrically conductive material and said reflective substrate.
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申请公布号 |
US5311098(A) |
申请公布日期 |
1994.05.10 |
申请号 |
US19920888083 |
申请日期 |
1992.05.26 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
SEELY, JOHN F.;HUNTER, WILLIAM R. |
分类号 |
H01J1/34;(IPC1-7):H01J1/34;H01J43/08 |
主分类号 |
H01J1/34 |
代理机构 |
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地址 |
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