Electromagnetic and Transport Considerations in Subpicosecond Photoconductive Switch Modeling

Samir M. El-Ghazaly; Ravindra P. Joshi; Robert O. Grondin

doi:10.1109/22.54932

Electromagnetic and Transport Considerations in Subpicosecond Photoconductive Switch Modeling

Samir M. El-Ghazaly, Ravindra P. Joshi, Robert O. Grondin

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

It is now possible to use optoelectronic techniques to both generate and measure electrical waveforms with subpicosecond rise times. These rise times invalidate assumptions commonly made in developing equivalent circuit models for transmission lines and other simplifications commonly made in modeling conductivity. In this paper we discuss how a combination of direct finite-difference time-domain solutions of Maxwell’s equations and Monte Carlo models of photocarrier transport can be used to avoid making these assumptions.

Original language	English (US)
Pages (from-to)	629-637
Number of pages	9
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	38
Issue number	5
DOIs	https://doi.org/10.1109/22.54932
State	Published - May 1990

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Electromagnetic and Transport Considerations in Subpicosecond Photoconductive Switch Modeling",

abstract = "It is now possible to use optoelectronic techniques to both generate and measure electrical waveforms with subpicosecond rise times. These rise times invalidate assumptions commonly made in developing equivalent circuit models for transmission lines and other simplifications commonly made in modeling conductivity. In this paper we discuss how a combination of direct finite-difference time-domain solutions of Maxwell{\textquoteright}s equations and Monte Carlo models of photocarrier transport can be used to avoid making these assumptions.",

author = "El-Ghazaly, {Samir M.} and Joshi, {Ravindra P.} and Grondin, {Robert O.}",

note = "Funding Information: Manuscript received August 21, 1989; revised November 28, 1989. This work was supported by the Air Force Office of Scientific Research, by the FGIA Program at Arizona State University, and by the National Science Foundation. The authors are with the Center for Solid State Electronics Research, Arizona State University, Tempe, AZ 85287. IEEE Log Number 9034819.",

year = "1990",

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AU - El-Ghazaly, Samir M.

AU - Joshi, Ravindra P.

AU - Grondin, Robert O.

N1 - Funding Information: Manuscript received August 21, 1989; revised November 28, 1989. This work was supported by the Air Force Office of Scientific Research, by the FGIA Program at Arizona State University, and by the National Science Foundation. The authors are with the Center for Solid State Electronics Research, Arizona State University, Tempe, AZ 85287. IEEE Log Number 9034819.

PY - 1990/5

Y1 - 1990/5

N2 - It is now possible to use optoelectronic techniques to both generate and measure electrical waveforms with subpicosecond rise times. These rise times invalidate assumptions commonly made in developing equivalent circuit models for transmission lines and other simplifications commonly made in modeling conductivity. In this paper we discuss how a combination of direct finite-difference time-domain solutions of Maxwell’s equations and Monte Carlo models of photocarrier transport can be used to avoid making these assumptions.

AB - It is now possible to use optoelectronic techniques to both generate and measure electrical waveforms with subpicosecond rise times. These rise times invalidate assumptions commonly made in developing equivalent circuit models for transmission lines and other simplifications commonly made in modeling conductivity. In this paper we discuss how a combination of direct finite-difference time-domain solutions of Maxwell’s equations and Monte Carlo models of photocarrier transport can be used to avoid making these assumptions.

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Electromagnetic and Transport Considerations in Subpicosecond Photoconductive Switch Modeling

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