Free lunches: Extending material properties by homogenization

Tom G. Mackay, Akhlesh Lakhtakia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electromagnetic constitutive properties can be extended by judiciously combining component materials to form a composite material. Provided that the granular dimensions of the composite material are much smaller than the electromagnetic wavelengths involved, the composite material may be regarded as a homogenized composite material (HCM). There are many ways in which the characteristics of HCMs can extend beyond those of the component materials; for examples, gain and loss, group speed, and weak nonlinearity may each be enhanced via homogenization. There even are many ways in which HCMs can exhibit characteristics that are not at all exhibited by their component materials; for examples, anisotropy and bianisotropy, Voigt-wave propagation, and negative phase velocity may be supported by HCMs whose component materials do not support these properties. The combination of active and dissipative component materials can yield HCMs that are neither wholly active nor wholly dissipative; such HCMs are can support plane-wave propagation, as well as surface-wave propagation, that is amplified for certain propagation directions but attenuated for other propagation directions.

Original languageEnglish (US)
Title of host publicationInternational Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019
EditorsPartha Banerjee, Karl Gudmundsson, Akhlesh Lakhtakia, Guru Subramanyam
PublisherSPIE
ISBN (Electronic)9781510635135
DOIs
StatePublished - Jan 1 2019
EventInternational Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019, TFE3S 2019 - Reykjavik, Iceland
Duration: Jun 24 2019Jun 26 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11371
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019, TFE3S 2019
CountryIceland
CityReykjavik
Period6/24/196/26/19

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Mackay, T. G., & Lakhtakia, A. (2019). Free lunches: Extending material properties by homogenization. In P. Banerjee, K. Gudmundsson, A. Lakhtakia, & G. Subramanyam (Eds.), International Workshop on Thin Films for Electronics, Electro-Optics, Energy, and Sensors 2019 [1137102] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11371). SPIE. https://doi.org/10.1117/12.2534409