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Your search keyword '"Groves, C."' showing total 2 results
Start Over Author "Groves, C." Topic estimation theory Publication Type Academic Journals
2 results on '"Groves, C."'

1. Temperature dependence of breakdown voltage in AlxGa1-xAs.

Author

Groves, C., Harrison, C. N., David, J. P. R., and Rees, G. J.

Subjects
*ELECTRIC conductivity, *MONTE Carlo method, *ELECTRIC breakdown, *SCATTERING (Physics), *PARTICLES, *ESTIMATION theory
Abstract

Avalanche breakdown voltage has been measured in a series of AlxGa1-xAs (0

Published
2004
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2. Avalanche Noise Characteristics of Single A1xGa1-x As(0.3 < x < 0.6) -- GaAs Heterojunction APDs.

Author

Groves, C., Chia, C. K., Tozer, R. C., David, J. P. R., and Rees, G. J.

Subjects
*NOISE, *AUDITING standards, *DIODES, *VACUUM tubes, *ESTIMATION theory, *MONTE Carlo method
Abstract

Avalanche multiplication and excess noise have been measured on a series of AlxGa1-xAs-GaAs and GaAs-AlxGa1-xAs (x = 0.3, 0.45, and 0.6) single heterojunction p+-i-n+ diodes. In some devices excess noise is lower than in equivalent homojunction devices with avalanche regions composed of either of the constituent materials, the heterojunction with x = 0.3 showing the greatest improvement. Excess noise deteriorates with higher values of x because of the associated increase in hole ionization in the AlxGa1-xAs layer. It also depends critically upon the carrier injection conditions and Monte Carlo simulations show that this dependence results from the variation in the degree of noisy feedback processes on the position of the injected carriers. [ABSTRACT FROM AUTHOR]

Published
2005
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