Tunable Narrow Band Difference Frequency THz Wave Generation in DAST via Dual Seed PPLN OPGOptics Express
AbstractWe report a widely tunable narrowband terahertz (THz) source via difference frequency generation (DFG). A narrowband THz source uses the output of dual seeded periodically poled lithium niobate (PPLN) optical parametric generators (OPG) combined in the nonlinear crystal 4-dimthylamino-N-methyl-4-stilbazolium-tosylate (DAST). We demonstrate a seamlessly tunable THZ output that tunes from 1.5 THz to 27 THz with a minimum bandwidth of 3.1 GHz. The effects of dispersive phase matching, two-photon absorption, and polarization were examined and compared to a power emission model that consisted of the current accepted parameters of DAST.
Document VersionPublished Version
CopyrightCopyright © 2015, Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper is prohibited.
PublisherOptical Society of America
Citation InformationBrian Dolasinski, Peter E. Powers, Joseph W. Haus and Adam Cooney. "Tunable Narrow Band Difference Frequency THz Wave Generation in DAST via Dual Seed PPLN OPG" Optics Express Vol. 23 Iss. 3 (2015)
Available at: http://works.bepress.com/joseph_haus/28/