Announcement was released from the THz source research team in RIKEN. The source is compact, simple, and high efficiency. Below is the link to the RIKEN website but currently only available in Japanese.
This epoch-making invention shrinks table-top-size monochromatic THz-wave sources into one’s palm. It has number of advantages as follows.
- High conversion efficiency by backward oscillation
- Simple scheme; no other component required than QPM nonlinear crystal
- THz-wave frequency is tuned only the angle between the beam axis and the QPM device.
The result was presented in Advanced Solid State Lasers 2017.