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Journals and Conferences
There is a strong need for high energy ultrashort THz pulses. While optical rectification provides an accessible means to generate THz pulses, until recently, only pulses up to the 10 nJ energy level… (More)
It is now possible to generate terahertz (THz) pulses with sufficient energy and field amplitude to enable versatile applications in THz nonlinear optics and spectroscopy. In addition, THz waveform… (More)
THz pulses with more than 0.4 mJ energy were generated with 0.77% efficiency by optical rectification of 785-fs laser pulses in LiNbO3 using tilted-pulse-front pumping. The spectral peak is at about… (More)
The so far highest THz pulse energy (125 μJ) and efficiency (0.25%) were measured by optical rectification of 1.3 ps pulses in LiNbO3. The generation of mJ-level THz pulses is predicted by… (More)
Here, a compact solution is proposed for post-acceleration and monochromatization of particles leaving the laser-driven accelerator. The proposed method relies on the evanescent field of intense THz… (More)
Single-cycle THz radiation was generated by optical rectification of Yb-fiber laser pulses with 250 fs duration and 10 muJ energy. We obtained an average power of 0.5 mW at 1 MHz repetition rate.
THz generation scalable to high energies in ZnTe and GaP by tilted pulse front pumping at 1.45 and 1.7 μm wavelength was demonstrated. Up to 0.7% efficiency and 14 μJ energy were achieved.
We observe impact ionization and saturation of free carrier absorption in indium antimonide at 200K and 80K. We employ a novel THz-pump-THz probe scheme with up to 100 kV/cm pump fields and 100… (More)
A novel ZnTe contact-grating THz source, pumped above the three-photon absorption edge, was demonstrated. THz pulses up to 3.9 μJ energy were generated with up to 0.3% efficiency, 100× higher than… (More)
A robust method for producing half-cycle-few-cycle attosecond pulses in the extreme ultraviolet spectral range is proposed. It is based on coherent undulator radiation of relativistic ultrathin… (More)