Tunable sub-terahertz wave generation from an organic DAST crystal

Tetsuo Taniuchi, Satoshi Ikeda, Shuji Okada, Hachiro Nakanishi

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)


Tunable sub-terahertz (THz) waves ranging from 0.3 to 3 THz were generated in a 4′-N,N-dimethylamino-N′-methyl-4-stilbazolium tosylate (DAST) crystal using the difference frequency mixing technique. We developed a dual-wavelength optical parametric oscillator near 990 nm with two KTiOPO 4 crystals as the input light source. The maximum output energy of 17 nJ/pulse (peak power: 1.4W) was achieved at 0.7 THz using a high-quality DAST crystal with a 2-mm thickness.

Original languageEnglish
Pages (from-to)L652-L654
JournalJapanese Journal of Applied Physics, Part 2: Letters
Issue number20-23
Publication statusPublished - 2005
Externally publishedYes


  • Difference frequency generation
  • Nonlinear optics
  • Optical parametric oscillator
  • Organic crystal
  • Terahertz generation

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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