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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 23 — Nov. 8, 2010
  • pp: 23620–23625

Optical properties of DAST in the THz range

Paul D. Cunningham and L. Michael Hayden  »View Author Affiliations

Optics Express, Vol. 18, Issue 23, pp. 23620-23625 (2010)

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We report the far-infrared properties of the organic crystal DAST, a popular terahertz emitter, from 0.6 – 12 THz through use of a THz spectrometer incorporating air-plasma THz generation and electro-optic (EO) sampling in a poled EO polymer. We identify absorption features at 1.1, 3.1, 5.2, 7.1, 8.4, 11, and 12.3 THz and at 1.1, 1.3, 1.6, 2.2, 3, 5.2, 7.2, 9.6 and 11.7 THz for a-axis and b-axis polarized THz radiation respectively. These results allow for more accurate prediction of the optimum crystal thickness for broadband THz emission via optical rectification and difference frequency generation.

© 2010 OSA

OCIS Codes
(160.4670) Materials : Optical materials
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:

Original Manuscript: October 4, 2010
Revised Manuscript: October 21, 2010
Manuscript Accepted: October 22, 2010
Published: October 26, 2010

Paul D. Cunningham and L. Michael Hayden, "Optical properties of DAST in the THz range," Opt. Express 18, 23620-23625 (2010)

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