Abstract-Terahertz-based retrieval of the spectral phase and amplitude of ultrashort laser pulses

A. Curcio, V. Dolci, S. Lupi, and M. Petrarca

https://www.osapublishing.org/ol/abstract.cfm?uri=ol-43-4-783

Terahertz (THz) radiation is of great interest for a variety of applications, e.g., particle accelerations, spectroscopy investigations of quantum systems, and high-field study of materials. One of the most common laser-based processes to produce THz pulses is optical rectification, which transduces an infrared pump laser to the THz domain (0.1–20 THz). In this work, we propose and theoretically describe a method to characterize the amplitude and phase of the electric field of the pump laser pulse relying on THz generation and detection. We demonstrate with a numerical example how THz radiation can be used as diagnostics to characterize laser pulses with temporal length at the femtosecond level.

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