Counterpropagating frequency mixing with terahertz waves in diamond

Matteo Clerici, Lucia Caspani, Eleonora Rubino, Marco Peccianti, Marco Cassataro, Alessandro Busacca, Tsuneyuki Ozaki, Daniele Faccio, Roberto Morandotti

Research output: Contribution to journalArticle

26 Citations (Scopus)


Frequency conversion by means of Kerr nonlinearity is one of the most common and exploited nonlinear optical processes in the UV, visible, IR, and mid-IR spectral regions. Here we show that wave mixing of an optical field and a terahertz wave can be achieved in diamond, resulting in the frequency conversion of the terahertz radiation either by sum- or difference-frequency generation. In the latter case, we show that this process is phase matched and most efficient in a counterpropagating geometry.
Original languageEnglish
Pages (from-to)178-180
Number of pages3
JournalOptics Letters
Issue number2
Publication statusPublished - 10 Jan 2013


  • frequency conversion
  • nonlinear optical processes
  • wave mixing
  • terahertz wave
  • terahertz radiation

Cite this