Newport has introduced the terahertz (THz) pulse generation kit using a sub-35fs Ti:sapphire amplifier system. The kit can be integrated easily with a Ti:sapphire amplifier to generate terahertz pulses, which can be further used for linear, nonlinear, and time-resolved spectroscopy applications.
The kit utilises standard Newport optics, opto-mechanics, manual stages, and Conex-based motorised solutions to provide high performance and accuracy. The 800nm Ti:sapphire laser pulse (1kHz, ~300µJ per pulse) is focused into ambient air to generate the air plasma, which produces THz pulses. With this innovative design, the damage threshold is not a concern as the air replenishes itself from pulse to pulse. The THz pulse has an oscillation that spans about 1ps and has an estimated pulse energy of 0.1-0.3nJ per pulse. Furthermore, the ability to recover the phase and the amplitude information of the THz field through electro-optic sampling enables the kit to function as a THz spectrometer, without further modification.