Modeling terahertz radiation from a photoconducting structure

K. A. Remley, A. Weisshaar, V. K. Tripathi, S. M. Goodnick

Research output: Contribution to journalConference articlepeer-review

Abstract

Accurate characterization of the electromagnetic radiation arising from photoconducting systems is discussed. A computational technique is presented which combines the finite-difference time domain (FDTD) method with a spatial transformation, the Kirchhoff surface integral formulation. The technique enables incorporation of any number of material parameters while accurately accounting for the potentially wide-band nature of the radiation in an efficient computational method. Results are presented demonstrating a more accurate portrait of the radiation arising from a photoconducting structure than has been previously reported. Based on the simulation results, a simple model incorporating equivalent dipole sources is developed. Good agreement is shown between simulation results and measurements of similar structures.

Original languageEnglish (US)
Pages (from-to)25-34
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3794
DOIs
StatePublished - Jan 1 1999
Externally publishedYes
EventProceedings of the 1999 Materials and Electronics for High-Speed and Infrared Detectors - Denver, CO, USA
Duration: Jul 19 1999Jul 20 1999

ASJC Scopus subject areas

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

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