Intense THz source based on BNA organic crystal pumped at Ti:Sapphire wavelength

Abstract

We report on high energy terahertz pulses by optical rectification (OR) in the organic crystal N-benzyl-2-methyl-4-nitroaniline (BNA) directly pumped by a conventional Ti:Sapphire (Ti:Sa) amplifier. The simple scheme provides an optical to terahertz conversion efficiency of 0.25% when pumped by a collimated laser pulses with duration of 50 fs and central wavelength of 800nm. The generated radiation spans frequencies between 0.2 and 3 THz. We measured the damage threshold as well as the dependency of the conversion efficiency on the pump fluence, pump wavelength, and pulse duration.

References in corpus (8)

• Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations
• Single-cycle THz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in LiNbO3
• Terahertz-driven linear electron acceleration
• Molecular Orientation by Intense Single Cycle THz Pulses
• Field-driven femtosecond magnetization dynamics induced by ultrastrong coupling to THz transients
• High energy terahertz pulses from organic crystals: DAST and DSTMS pumped at Ti:sapphire wavelength
• Air nonlinear dynamics initiated by ultra-intense lambda-cubic THz pulses
• Simultaneous electronic and the magnetic excitation of a ferromagnet by intense THz pulses

Cited by in corpus (7)

• Towards Intense Ultra-Broadband High Repetition Rate Terahertz Sources Based on Organic Crystals [Invited]
• Efficient Broadband Terahertz Generation from Organic Crystal BNA Using Near Infrared Pump
• Enabling High-Power, Broadband THz Generation with 800-nm Pump Wavelength
• Analytically controlling laser-induced electron phase in sub-cycle motion
• Universality in odd-even harmonic generation and application in terahertz waveform sampling
• Comprehensive Characterization of Terahertz Generation with the Organic Crystal BNA
• Efficient broadband THz generation in BNA organic crystal at Ytterbium laser wavelength