Near-optimal intense and powerful terahertz source by optical rectification in lithium niobate crystal

Abstract

Using an affordable ytterbium laser with sub-mJ of energy combined with a novel pulse compression technique, we demonstrate an extremely competitive state-of-the-art terahertz (THz) source with 53 mW of average power and 310 kV/cm at focus from the tilted-pulse front pumping scheme in lithium niobate at room temperature. Key points of this demonstration include the use of a pump pulse duration of 280 fs in combination with an echelon mirror. Our results present unmatched combined characteristics and are highly competitive with the existing THz sources pumped at the mJ range. This demonstration is a step towards the democratization of access to intense and powerful THz pulses.

arXiv comment6 pages, 5 figures, 1 table

References in corpus (5)

• Single-cycle THz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in LiNbO3
• Terahertz-Field-Induced Ferroelectricity in Quantum Paraelectric SrTiO${}_3$
• Real-time terahertz near-field microscope
• Selective excitation of multipolar spoof plasmons using orbital angular momentum of light
• Extreme Lightwave Electron Field Emission from a Nanotip