Showing results: 46 - 60 of 158 items found.
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Hot Electron Bolometer (HEB) -
Insight Product Company
Insight Product Company offers Hot Electron Bolometer (HEB) mixers, receivers, and chips made from NbN or NbTiN thin film. The HEB mixers can operate at frequencies of up to several terahertz. Advantages: Above about 1 THz Hot Electron Bolometer mixers offer the best sensitivity and lowest noise of all the technology for the coherent detection of radiation.
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Pulsed Electron Deposition -
Neocera, Inc.
Is a process in which a pulsed (80-100 ns) high power electron beam (~1000 A, 15 kV) penetrates approximately 1 μm into the target resulting in a rapid evaporation of target material. The non-equilibrium heating of the target facilitates stoichiometric ablation of the target material. Under optimum conditions, the target stoichiometry is preserved in the deposited films. All solid state materials – metals, semiconductors and insulators, including those transparent to laser wavelengths in PLD – can be deposited as thin films with PED. By combining PLD and PED, the range of complex materials that can be prepared as thin films can be greatly enhanced.
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Intevac Imaging
Intevac's EBAPS technology is based on a III-V semiconductor photocathode in proximity-focus with a high resolution, backside-thinned, CMOS chip anode. The electrons emitted by the photocathode are directly injected in the electron bombarded mode into the CMOS anode, where the electrons are collected, amplified and read-out to produce digital video directly out of the sensor.
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Exosens Group
In Gamma detectors, the gamma radiations produce electrons by interacting with the cathode material and the filling gas.These electrons ionize the gas and the charge carriers are collected by the electrodes. The resulting anode pulse is detected by a load circuit. The primary electrons are created by several interaction mechanisms:- Photoelectric effect- Compton scattering- Pair production
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Appointech, Inc.
A light source essentially is an optical transmitter that is paired with an optical receiver, both of which are connected to electrically based devices or systems. So, the source converts electrons to photons and the detector converts photons to electrons.
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Edmund Optics Inc.
These avalanche photodiodes (APDs) are silicon photodiodes with an internal gain mechanism. As with a conventional photodiode, absorption of incident photons creates electron-hole pairs. A high reverse bias voltage creates a strong internal electric field, which accelerates the electrons through the silicon crystal lattice and produces secondary electrons by impact ionization. The resulting electron avalanche can produce gain factors up to several hundred.
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