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Polarization insensitive photoconductive switch
A photoconductive switch semiconductor device including a semiconductor substrate including a region functioning as a photoconductive switch; and a metallization layer disposed on the surface of the semiconductor substrate including a first component including a first terminal, and an inwardly spiraling first middle portion, and a first end portion, and a...

Sol-gel process for the manufacture of high power switches
According to one embodiment, a photoconductive semiconductor switch includes a structure of nanopowder of a high band gap material, where the nanopowder is optically transparent, and where the nanopowder has a physical characteristic of formation from a sol-gel process. According to another embodiment, a method includes mixing a sol-gel precursor compound,...

Photoconductive switch with improved life span
Methods, devices and systems enhance the operation and lifespan of photoconductive switches. A photoconductive switch is described that includes a photoconductive material with a first face and a second face, as well as a first contact and a second contact that are positioned above a top surface and below a bottom...

High frequency modulation circuits based on phtoconductive wide bandgap switches
Methods, systems, and devices for high voltage and/or high frequency modulation. In one aspect, an optoelectronic modulation system includes an array of two or more photoconductive switch units each including a wide bandgap photoconductive material coupled between a first electrode and a second electrode, a light source optically coupled to the...

Image forming apparatus
An image forming apparatus is provided, which includes photoconductive drums arranged along a sheet conveyance direction, transfer bodies each disposed to face a corresponding one of the photoconductive drums, a fuser unit disposed downstream relative to a most downstream photoconductive drum in the sheet conveyance direction and configured to feed a...

Reducing localized high electric fields in photoconductive wide bandgap semiconductors
Methods, systems, and devices are disclosed for implementing a high voltage variable resistor. In one aspect, an optical transconductance variable resistor includes a photoconductive wide bandgap semiconductor material (PWBSM) substrate, whose conduction response to changes in amplitude of incident radiation that is substantially linear throughout a non-saturation region thereof, whereby the...

Semi-contact bias charge roller
There is described an image forming apparatus including an imaging member having a charge retentive-surface for developing an electrostatic latent image thereon, a substrate and a photoconductive member disposed on the substrate. A bias charge roller for applying an electrostatic charge on the charge retentive surface to a predetermined electric potential...

Automotive light
An automotive light is provided that includes a light-guide bar made of photoconductive-material, which is at least partially positioned substantially grazing a corresponding transparent or semitransparent portion of the front lenticular half-shell of the light, and a second light source which is structured so as to emit light when electricity powered,...

Transfer of ink layers
An image forming apparatus includes a photoconductive member to move in a rotational direction, a charging unit to charge the photoconductive member, a discharging unit to discharge a portion of the photoconductive member to form a latent image thereon, and a plurality of ink applicator units to sequentially apply a plurality...

Image forming apparatus
An image forming apparatus has a photoconductive member and a cleaning member arranged to face the photoconductive member at a cleaning position and configured be applied with a cleaning bias to collect the developing agent residual on the photoconductive member after the developed image is transferred. A controller of the image...

Optoelectronic devices with all-inorganic colloidal nanostructured films
Optoelectronic devices and methods of producing the same are disclosed. Methods may include forming a film from fused all-inorganic colloidal nanostructures, where the nanostructures may include inorganic nanoparticles and functional inorganic ligands, and the fused nanostructures may form an electrical network that is photoconductive. Other methods may provide an optoelectronic device...

Optical system, terahertz emission microscope, and method of manufacturing a device
There is provided an optical system, including: an extracting section, the refractive index of the extracting section being approximately the same as the refractive index of an observed object, the extracting section being optically coupled with the observed object to thereby extract a terahertz electromagnetic wave generated from the observed object;...

Optically induced cell lysis biochip
The present invention provides an optically induced cell lysis biochip, which comprises: an upper substrate made of a transparent, electrically conductive material; a lower substrate made of a transparent, electrically conductive material; a photoconductive layer formed under the lower surface of the upper substrate or on the upper surface of the...

Electrophotographic photosensitive member and electrophotographic apparatus
Provided is an electrophotographic photosensitive member that improves the sensitivity characteristic and high-humidity deletion resistance, and achieves compatibility between a high image-resolving power and the suppression of an image memory. The electrophotographic photosensitive member comprises an electrophotographic photosensitive member, including: a photoconductive layer; and a surface layer comprising hydrogenated amorphous silicon...

Photoconductive device with plasmonic electrodes
A photoconductive device that includes a semiconductor substrate, an antenna assembly, and a photoconductive assembly with one or more plasmonic contact electrodes. The photoconductive assembly can be provided with plasmonic contact electrodes that are arranged on the semiconductor substrate in a manner that improves the quantum efficiency of the photoconductive device...

Image forming apparatus
An image forming apparatus including an apparatus main body including an inner wall that defines an accommodation portion, photoconductive drums arranged in parallel at intervals in a predetermined direction toward a first side from a second side, in the accommodation portion, chargers disposed corresponding to the photoconductive drums, respectively, each charger...

Image forming apparatus
An image forming apparatus including a plurality of image forming units arranged in parallel with each other at intervals in a predetermined direction toward a first side from a second side of the image forming apparatus, each image forming unit including a photoconductive drum, and a charger configured to charge the...

Image forming apparatus
An image forming apparatus includes a slidingly-rubbing roller abutting a surface of a photoconductive drum; a temperature detection section; a humidity detection section; and a heating control section. In a case when the humidity detected by the humidity detection section is equal to or higher than first threshold humidity and also...

High voltage photoconductive switch package
A photoconductive switch having a wide bandgap material substrate between opposing electrodes, and a doped dielectric filler that is in contact with both the electrodes and the substrate at the triple point. The dielectric filler material is doped with a conductive material to make it partially or completely conducting, to minimize...

Image forming apparatus
An image forming apparatus is provided with a casing, a drum unit including a photoconductive drum having a central axis extending in a first direction, and a charging device configured to charge the photoconductive drum, a fixing unit configured to fix an image on a printing medium, a fan configured to...

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