Multicycle THz pulse generation by optical rectification in GaP semiconductor nonlinear material is investigated by numerical simulations. It is shown that GaP can be an efficient and versatile source with up to about 8% conversion efficiency and a tuning range from 0.1 THz to about 7 THz. Contact-grating technology for pulse-front tilt can ensure an excellent focusability and scaling the THz pulse energy beyond 1 mJ. Shapeable infrared pump pulses with a constant intensity-modulation period can be delivered for example by a flexible and efficient dual-chirped optical parametric amplifier. Potential applications include linear and nonlinear THz spectroscopy and THz-driven acceleration of electrons.
|Journal||Journal of Physics B: Atomic, Molecular and Optical Physics|
|Publication status||Published - Apr 18 2018|
- multicycle terahertz pulses
- optical rectification
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics