نتایج جستجو برای: photoresponse
تعداد نتایج: 1121 فیلتر نتایج به سال:
Vertebrate retinas contain two types of photoreceptors. Rods are for vision in dim light, while cones provide high-speed color vision in bright light. In this issue of Neuron, Kefalov et al. present data to explain the reduced sensitivity and faster response kinetics of cones. They show that the chromophore dissociates from cone but not rod visual pigment, yielding apo-opsin. This apo-opsin act...
We report on non resonant detection of sub-terahertz radiation (148-353 GHz) using strained silicon modulation field effect transistor with different gate lengths. The devices were excited at room temperature by a Backward Wave Oscillator (BWO) source. Enhancement of the photoresponse signal by drain-to-source bias was observed. Increasing drain-to-source voltage leads to asymmetry between the ...
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