High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate.

@article{Huang2013HighCE,
  title={High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate.},
  author={S. W. Huang and E Granados and Wenqian Ronny Huang and K. Hong and Luis E. Zapata and Franz X. K{\"a}rtner},
  journal={Optics letters},
  year={2013},
  volume={38 5},
  pages={796-8}
}
We demonstrate highly efficient terahertz (THz) generation by optical rectification (OR) of near-optimum pump pulses centered at 1.03 μm in cryogenically cooled lithium niobate. Using a close to optimal pulse duration of 680 fs and a pump energy of 1.2 mJ, we report conversion efficiencies above 3.8±0.4%, which is more than an order of magnitude higher than previously reported. The results confirm the advantage of using cryogenic cooling of the lithium niobate crystal that significantly reduces… CONTINUE READING
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