Journal
OPTICS LETTERS
Volume 39, Issue 23, Pages 6632-6635Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.006632
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Funding
- Swiss National Science Foundation (SNSF) [200021_146769]
- Swiss FEL
- SNSF [PP00P2_150732]
- Swiss National Science Foundation (SNF) [200021_146769, PP00P2_150732] Funding Source: Swiss National Science Foundation (SNF)
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We report on high-field terahertz transients with 0.9-mJ pulse energy produced in a 400 mm(2) partitioned organic crystal by optical rectification of a 30-mJ laser pulse centered at 1.25 mu m wavelength. The phase-locked single-cycle terahertz pulses cover the hard-to-access low-frequency range between 0.1 and 5 THz and carry peak fields of more than 42 MV/cm and 14 Tesla with the potential to reach over 80 MV/cm by choosing appropriate focusing optics. The scheme based on a Cr:Mg2SiO4 laser offers a high conversion efficiency of 3% using uncooled organic crystal. The collimated pump laser configuration provides excellent terahertz focusing conditions. (C) 2014 Optical Society of America
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