Monochromatic Cherenkov THz Source Pumped by a Singly Resonant Optical Parametric Oscillator

@article{Liu2014MonochromaticCT,
  title={Monochromatic Cherenkov THz Source Pumped by a Singly Resonant Optical Parametric Oscillator},
  author={Pengxiang Liu and De-Gang Xu and Jiaqi Li and Chao Yan and Zhongxiao Li and Yuye Wang and J. G. Yao},
  journal={IEEE Photonics Technology Letters},
  year={2014},
  volume={26},
  pages={494-496}
}
We report an improvement of terahertz (THz) output energy via Cherenkov-type difference frequency generation by developing the dual-wavelength pump source, which is based on a singly resonant near-degenerated optical parametric oscillator. Total utilization efficiency of pump energy is considerably increased by recycling the residual fundamental wave. The highest energy of Cherenkov-type monochromatic THz generation is achieved to be 1.58 nJ/pulse. A tuning range of 0.1-3.2 THz is demonstrated.