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A Metal-Insulator-Metal (MIM) plasmonic optical microcavity is proposed to be integrated with an InP based single photon avalanche diode (SPAD). The MIM microcavity includes a large top metallic grating to couple incident light into the cavity and a small bottom metallic grating to couple the light into the APD, which provides a possibility to improve the SPAD's performance through decreasing the...
A Metal-Insulator-Metal (MIM) Plasmonic Focusing Cavity is simulated. The structure includes a large upper metallic grating to couple incident light into the cavity and a small lower metallic grating to couple the light into the Avalanche Photodiode (APD) below the MIM cavity. Our results provide a possibility to reduce the dark current of an InGaAs/InP APD operated under the Geiger mode through decreasing...
In this paper, we theoretically study the electrical properties of a separate absorption, grading, charge, and multiplication InGaAs/InP avalanche photodiodes(APD) on the multiplication layer for different carrier lifetime, doping and traps concentration. These characteristics can be used to analyze some problems in the process of device fabrication.
An InGaAs/InP single-photon avalanche photodiode (SPAD) with a high differential gain was achieved by changing the multiplication region thickness and the sheet charge density of the charge layer. A gain of more than 100 was obtained. The DCR is less than 1k with the frequency up to 250 kHz.
In this paper, the effects of the thickness of the multiplication region (Tm), the sheet charge density of the charge control layer (Dc) and the guard ring design to a separate absorption, grading, charge, and multiplication InGaAs/InP single photon avalanche diode (SPAD)'s performance are numerically discussed. Optimized Tm and Dc are designed for a SPAD. Implanted guard ring is revealed to be easier...
In this paper, we theoretically study the performance of a separate absorption, grading, charge, and multiplication (SAGCM) InGaAs/InP single photon avalanche diode (SPAD) using a two-dimensional drift-diffusion model based on our experimental results. The electric field, dark current and breakdown voltage are calculated for the SPAD for different thickness of the charge and the multiplication layers,...
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