Optimal wavelength for two-color filamentation-induced terahertz sources

Vladimir Y.U. Fedorov, Stylianos Tzortzakis

Research output: Contribution to journalArticle

7 Citations (Scopus)


We theoretically study the generation of terahertz (THz) radiation by two-color filamentation of ultrashort laser pulses with different wavelengths. We consider wavelengths in the range from 0.6 to 10.6 µm, thus covering the whole range of existing and future powerful laser sources in the near, mid and far-infrared. We show how different parameters of two-color filaments and generated THz pulses depend on the laser wavelength. We demonstrate that there is an optimal laser wavelength for two-color filamentation that provides the highest THz conversion efficiency and results in generation of extremely intense single cycle THz fields.

Original languageEnglish
Pages (from-to)31150-31159
Number of pages10
JournalOptics Express
Issue number24
Publication statusPublished - 26 Nov 2018


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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