Exploiting the optical quadratic nonlinearity of zinc-blende semiconductors for guided-wave terahertz generation: a material comparison

Claudio Leone, Alessandro Busacca, Saverio Bivona, Salvatore Stivala, Alfonso Carmelo Cino, Stefano Riva Sanseverino, Roberto Luigi Oliveri, Stefano Riva Sanseverino, Alberto Taormina, Alfonso C. Cino, Stefano Riva Sanseverino

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

We present a detailed analysis and comparison of dielectric waveguides made of CdTe, GaP, GaAs and InP for modal phase matched optical difference frequency generation (DFG) in the terahertz domain. From the form of the DFG equations, we derived the definition of a very general figure of merit (FOM). In turn, this FOM enabled us to compare different configurations, by taking into account linearand nonlinear susceptibility dispersion, terahertz absorption, and a rigorous evaluation of the waveguide modes properties. The most efficient waveguides found with this procedure are predicted to approach the quantum efficiency limit with input optical power in the order of kWs.
Original languageEnglish
Pages (from-to)368-376
Number of pages9
JournalIEEE Journal of Quantum Electronics
Volume46
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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