Nonlocal impact ionization and avalanche multiplication
نویسندگان
چکیده
منابع مشابه
The Effects of Nonlocal Impact Ionization on the Speed of Avalanche Photodiodes
The nonlocal enhancement in the velocities of charge carriers to ionization is shown to outweigh the opposing effects of dead space, increasing the avalanche speed of short avalanche photodiodes (APDs) over the predictions of a conventional local model which ignores both of these effects. The trends in the measured gain–bandwidth product of two short InAlAs APDs reported in the literature suppo...
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Luca Pirro, Anuj Girdhar, Yusuf Leblebici, and Jean-Pierre Leburton Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA Microelectronic System Laboratory, EPFL, Lausanne, CH 1015, Switzerland Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA Department of Electrical and Computer Engineering, University of Illino...
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Electrical conductivity of a highly boron doped chemical vapor deposited diamond thin film has been studied at different temperatures under high electric field conditions. Current-voltage characteristics have been measured using pulsed technique to reduce thermal effects. Experimental results evidence deep impurity impact ionization avalanche in p-type diamond up to room temperature.
متن کاملField dependent avalanche ionization rates in dielectrics.
From the pulse length dependence of the absorption of intense ultrashort laser pulses focused inside fused silica, we reveal the role field-assisted collisional ionization plays in the multiphoton ionization process. This constitutes a cold avalanche ionization mechanism that persists at pulse lengths considered too short for a traditional avalanche.
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In Part I, a new theory for impact ionization that utilizes history-dependent ionization coefficients to account for the nonlocal nature of the ionization process has been described. In this paper, we will review this theory and extend it with the assumptions that are implicitly used in both the local-field theory in which the ionization coefficients are functions only of the local electric fie...
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ژورنال
عنوان ژورنال: Journal of Physics D: Applied Physics
سال: 2010
ISSN: 0022-3727,1361-6463
DOI: 10.1088/0022-3727/43/24/243001