DAST/SiO2 multilayer structure for efficient generation of 6 THz quasi-single-cycle electromagnetic pulses

Opt Lett. 2012 Jul 1;37(13):2439-41. doi: 10.1364/OL.37.002439.

Abstract

We propose a DAST/SiO(2) multilayer structure for efficient generation of near-single-cycle THz transients with average frequency around 6 THz via collinear optical rectification of 800 nm femtosecond laser pulses. The use of such a composite material allows compensation for the phase mismatch that accompanies THz generation in bulk DAST crystals. The presented calculations indicate a strong increase in the THz generation efficiency in the DAST/SiO(2) structure in comparison to the case of bulk DAST crystal.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzylidene Compounds / chemistry*
  • Electromagnetic Radiation*
  • Pyridinium Compounds / chemistry*
  • Quartz
  • Silicon Dioxide / chemistry*
  • Tosyl Compounds / chemistry*

Substances

  • Benzylidene Compounds
  • Pyridinium Compounds
  • Tosyl Compounds
  • Quartz
  • Silicon Dioxide