Matches 1 - 24 out of 24


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US20110089825 PHOTOCATHODE  
The present invention aims at providing a photocathode which can improve various characteristics. In a photocathode 10, an intermediate layer 14, an underlayer 16, and a photoelectron emission...
US20100096985 PHOTOCATHODE, PHOTOMULTIPLIER AND ELECTRON TUBE  
The present invention relates to a photocathode having a structure to dramatically improve the effective quantum efficiency in comparison with that of a conventional art, an photomultiplier and an...
US20130293100 Graphene Shield Enhanced Photocathodes and Methods for Making the Same  
Disclosed are graphene shield enhanced photocathodes, such as high QE photocathodes. In certain embodiments, a monolayer graphene shield membrane ruggedizes a high quantum efficiency photoemission...
US20090322222 Robust activation method for negative electron affinity photocathodes  
A method by which photocathodes (201), single crystal, amorphous, or otherwise ordered, can be surface modified to a robust state of lowered and in best cases negative, electron affinity has been...
US20120103825 ANTI-REFLECTIVE NANOPOROUS SILICON FOR EFFICIENT HYDROGEN PRODUCTION  
Exemplary embodiments are disclosed of anti-reflective nanoporous silicon for efficient hydrogen production by photoelectrolysis of water. A nanoporous black Si is disclosed as an efficient...
US20070096648 Photocathode  
A semiconductor photocathode 1 includes: a transparent substrate 11; a first electrode 13, formed on the transparent substrate 11 and enabling passage of light that has been transmitted through...
US20050156521 Optical modulator of electron beam  
An optoelectronic modulator is based on the concentration of an electron beam from an electron gun by a tapered cavity, which sides are photosensitive and change the electrical conductivity under...
US20100253218 PHOTOCATHODE, ELECTRON TUBE, AND PHOTOMULTIPLIER TUBE  
In the photocathode, an underlayer made of a crystalline material containing La2O3 is provided between a supporting substrate and a photoelectron emission layer, and is in contact with the...
US20060049755 Alkali metal generating agent, alkali metal generator, photoelectric surface, secondary electron emission surface, electron tube, method for manufacturing photoelectric surface, method for manufacturing secondary electron emission surface, and method for manufacturing electron tube  
The present invention relates to an alkali metal generating agent and others for formation of a photo-cathode or a secondary-electron emitting surface capable of stably generating an alkali metal....
US20080042563 Photocathode, electron tube, field assist type photocathode, field asist type photocathode array, and field asist type electron tube  
When light is incident to an antenna layer AA6 of a photocathode AA1, light of a specific wavelength included in the incident light couples with surface plasmons in the antenna layer AA6 whereupon...
US20150255241 INTEGRATED PHOTOEMISSION SOURCES AND SCALABLE PHOTOEMISSION STRUCTURES  
A scalable, integrated photoemitter device and method of manufacture using conventional CMOS manufacturing techniques. The photoemitter device has a first semiconductor substrate having a...
US20110006674 METHOD FOR FABRICATING NANO-SCALE PATTERNED SURFACES  
A method for fabrication of substrate having a nano-scale surface roughness is presented. The method comprises: patterning a surface of a substrate to create an array of spaced-apart regions of a...
US20130134869 PHOTO CATHODE FOR USE IN A VACUUM TUBE AS WELL AS SUCH AS VACUUM TUBE  
A photo cathode for use in a vacuum tube including a cathode layer, having an entrance face capable of absorbing photons impinging on the cathode layer, and an exit face for releasing electrons...
US20110215717 High voltage switch triggered by a laser-photocathode subsystem  
A spark gap switch for controlling the output of a high voltage pulse from a high voltage source, for example, a capacitor bank or a pulse forming network, to an external load such as a high...
US20150146865 FIELD EMISSION DEVICE HAVING FIELD EMITTER INCLUDING PHOTOELECTRIC MATERIAL AND METHOD OF MANUFACTURING THE SAME  
Provided are a field emission device and a method of manufacturing the same. The field emission device includes an anode electrode and a cathode electrode which are opposite to each other, a...
US20100148667 PHOTOCATHODE, ELECTRON TUBE, FIELD ASSIST TYPE PHOTOCATHODE, FIELD ASSIST TYPE PHOTOCATHODE ARRAY, AND FIELD ASSIST TYPE ELECTRON TUBE  
When light is incident to an antenna layer AA6 of a photocathode AA1, light of a specific wavelength included in the incident light couples with surface plasmons in the antenna layer AA6 whereupon...
US20110221336 PHOTOMULTIPLIER AND ITS MANUFACTURING METHOD  
The present invention relates to a photomultiplier having a structure for making it possible to easily realize high detection accuracy and fine processing, and a method of manufacturing the same....
US20070296335 Process for Producing Layered Member and Layered Member  
The object is to provide a photoelectric surface member which allows higher quantum efficiency. In order to achieve this object, a photoelectric surface member 1a is a crystalline layer formed by...
US20160233044 TRANSMISSION MODE PHOTOCATHODE  
A transmission mode photocathode comprises: an optically transparent substrate having an outside face to which light is incident, and an inside face from which the light incident to the outside...
US20160203937 PLANAR FIELD EMITTERS AND HIGH EFFICIENCY PHOTOCATHODES BASED ON ULTRANANOCRYSTALLINE DIAMOND  
A method of forming a field emitter comprises disposing a first layer on a substrate. The first layer is seeded with nanodiamond particles. The substrate with the first layer disposed thereon is...
US20160181050 INTEGRATED PHOTOEMISSION SOURCES AND SCALABLE PHOTOEMISSION STRUCTURES  
A scalable, integrated multi-level photoemitter device of tapered design and method of manufacture using conventional CMOS manufacturing techniques. The photoemitter device has a tapered...
US20160172144 ACTIVATION CHAMBER AND KIT USED IN TREATMENT DEVICE FOR LOWERING ELECTRON AFFINITY, TREATMENT DEVICE THAT CONTAINS SAID KIT AND IS USED TO LOWER ELECTRONIC AFFINITY, PHOTOCATHODE ELECTRON-BEAM SOURCE, ELECTRON GUN CONTAINING PHOTOCATHODE ELECTRON-BEAM SOURCE, FREE-ELECTRON LASER ACCELERATOR, TRANSMISSION ELECTRON MICROSCOPE, SCANNING ELECTRON MICROSCOPE, ELECTRON-BEAM HOLOGRAPHY MICROSCOPE, ELECTRON-BEAM LITHOGRAPHY DEVICE, ELECTRON-BEAM DIFFRACTION DEVICE, AND ELECTRON-BEAM SCANNING DEVICE  
This invention provides a treatment device for lowering electron affinity, said treatment device being capable of performing an EA surface treatment on a photocathode material or an EA surface...
US20160093460 PHOTOCATHODE DEVICE THAT REPLENISHES PHOTOEMISSIVE COATING  
A photocathode device may replenish its photoemissive coating to replace coating material that desorbs/evaporates during photoemission. A linear actuator system may regulate the release of a...
US20150279606 SEMI-TRANSPARENT PHOTOCATHODE WITH IMPROVED ABSORPTION RATE  
The invention relates to a semi-transparent photocathode (1) for a photon detector having an increased absorption rate for a preserved transport rate. According to the invention, the photocathode...

Matches 1 - 24 out of 24