Continuously phase-matched terahertz difference frequency generation in an embedded-waveguide structure supporting only fundamental modes

Optics Express
C M StausL McCaughan

Abstract

We demonstrate an all-single mode structure which enables continuous phase matching of difference frequency generated THz light from the near-IR. This structure provides a long interaction length by way of well-confined collinear propagation of pumps and product without diffraction, resulting in high conversion efficiency. A LiNbO(3) version of this structure achieved a power-normalized conversion efficiency of 1.3 x 10(-7) W(-1)--some 23 times larger than the largest previously reported results.

Citations

Mar 26, 2014·Applied Optics·Hamid Reza Zangeneh, Marzieh Asadnia Fard Jahromi
Aug 6, 2009·Optics Express·Zhichao RuanShanhui Fan
Sep 6, 2012·Nature Communications·L ConsolinoP De Natale
Dec 25, 2012·Optics Express·M I BakunovE A Mashkovich

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