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Drude-Lorentz Model of Semiconductor Optical Plasmons

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IAENG Transactions on Engineering Technologies

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 247))

Abstract

Theoretical solutions are obtained for the propagation of electromagnetic waves at optical frequencies along a semiconductor/dielectric interface when losses are taken into account in the form of a complex dielectric function. A combination method for the dielectric function, comprised of the best features of the Drude and Lorentz models, is herein proposed. By including the loss term in both models, we were able to obtain numerical solutions for the Plasma dispersion curve of the semiconductor/dielectric interface. The surface plasmon waves, when excited, become short wavelength waves in the Optical frequency or THz region. A silicon/air structure was used as our semiconductor/dielectric material combination, and comparisons were made to optical plasmons generated without losses. Our initial numerical calculation results show enormous potential for use in several applications.

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Acknowledgments

This work was supported by NSERC (Natural Sciences and Engineering Research Council) and NSERC’S ASPIRE (Applied Science in Photonics and Innovative Research in Engineering), both of Canada. We gratefully acknowledge helpful discussions with members of professor Cada’s photonics research, and with Professor J. Pištora of technical University of Ostrava, Czech Republic.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Dalhousie University, Halifax, Nova Scotia, B3H4R2, Canada

    Mohamed Eldlio, Franklin Che & Michael Cada

Authors
  1. Mohamed Eldlio
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  2. Franklin Che
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  3. Michael Cada
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Corresponding author

Correspondence to Mohamed Eldlio .

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Editors and Affiliations

  1. Computer & Communication Dean of Engineering College, Catholic University of DaeGu Engineering College, DaeGu, Korea, Republic of (South Korea)

    Haeng Kon Kim

  2. Unit 1, 1/F, International Association of Engineers, Hong Kong, Hong Kong SAR

    Sio-Iong Ao

  3. College of Engineering, California State Polytechnic University, Pomona, California, USA

    Mahyar A. Amouzegar

  4. Abt. Linguistische Datenverarbeitung, Universität Trier Inst.Computerlinguistik, Trier, Germany

    Burghard B. Rieger

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Eldlio, M., Che, F., Cada, M. (2014). Drude-Lorentz Model of Semiconductor Optical Plasmons. In: Kim, H., Ao, SI., Amouzegar, M., Rieger, B. (eds) IAENG Transactions on Engineering Technologies. Lecture Notes in Electrical Engineering, vol 247. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6818-5_4

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  • DOI: https://doi.org/10.1007/978-94-007-6818-5_4

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  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-007-6817-8

  • Online ISBN: 978-94-007-6818-5

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