Title:
TUNED BANDWIDTH PHOTOCATHODE FOR TRANSMISSION ELECTRON AFFINITY DEVICES
Document Type and Number:
WIPO Patent Application WO2004107378
Kind Code:
A3
Abstract:
A photocathode includes a first layer (52) having a first energy band gap for providing absorption of light of wavelengths shorter than or equal to a first wavelength, a second layer (53) having a second energy band gap for providing transmission of light of wavelengths longer than the first wavelength, and a third layer having a third energy band gap for providing absorption of light of wavelengths between the first wavelength and a second wavelength. The first wavelength is shorter than the second wavelength. The first, second and third layers are positioned in sequence between input and output sides of the photocathode.
Inventors:
SILLMON ROGER S (US)
SMITH ARLYNN WALTER (US)
BENZ RUDY G (US)
SMITH ARLYNN WALTER (US)
BENZ RUDY G (US)
Application Number:
PCT/US2004/011690
Publication Date:
March 24, 2005
Filing Date:
April 15, 2004
Export Citation:
Assignee:
ITT MFG ENTERPRISES INC (US)
SILLMON ROGER S (US)
SMITH ARLYNN WALTER (US)
BENZ RUDY G (US)
SILLMON ROGER S (US)
SMITH ARLYNN WALTER (US)
BENZ RUDY G (US)
International Classes:
H01J1/00; H01J9/12; H01J31/50; H01J40/06; H01J43/08; H01L21/00; H01L27/146; H01L29/12; (IPC1-7): H01J40/06; H01L27/146
Foreign References:
| DE3310303A1 | 1984-09-27 | |||
| EP1265296A1 | 2002-12-11 | |||
| EP0797256A2 | 1997-09-24 | |||
| US6005257A | 1999-12-21 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 21 3 August 2001 (2001-08-03)
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