Abstract In this paper, a novel 4H-SiC coaxial p-i-n ultraviolet photodetector with intense photon absorption and high quantum efficiency is studied. The spectral response electric field distribution of the detector are calculated by TCAD software. results showed that innovative has peak 0.1998 A/W at 260 nm illumination wavelength more than twice higher traditional photodetector, when under 27...

With the recent advancement of gigabit fiber communication and the photonic distribution of microwave signals, there is a growing need to characterize the high-speed optical signals found in such systems. This task is typically accomplished with a high-speed photodetector followed by an instrument such as a sampling oscilloscope, a radio frequency (RF) spectrum analyzer, or a vector network ana...

The authors present the design and fabrication of a nanophotonic waveguide and photodetector integrated device by molecular self-assembly of nanocrystal quantum dots (QD) and two different nano-gap formation techniques, namely electromigration-induced break-junction technique and electron beam lithography nano-gap patterning. A QD waveguide with 50 nm width integrated with a nano-scale QD photo...

Photomultiplication Type Organic Photodetector with Removable Top Electrode In article number 2200651, Takao Someya, Tomoyuki Yokota, and co-workers develop airstable photomultiplication type organic photodetector removable top electrode. The developed structure enables the direct continuous analysis of active layer after operation in air.

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A polarization preserving quantum nondemolition photodetector is proposed based on nonlinearities obtainable through quantum coherence effects. An atomic level scheme is devised such that in the presence of strong linearly polarized drive field a coherent weak probe field acquires a phase proportional to the number of photons in the signal mode immaterial of its polarization state. It is also s...