Intense THz source based on BNA organic crystal pumped at Ti:Sapphire wavelength
Materials Science
2016-05-04 v1 Other Condensed Matter
Optics
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.
Keywords
Cite
@article{arxiv.1602.04458,
title = {Intense THz source based on BNA organic crystal pumped at Ti:Sapphire wavelength},
author = {Mostafa Shalaby and Carlo Vicario and Karunanithi Thirupugalmani and Srinivasan Brahadeeswaran and Christoph P. Hauri},
journal= {arXiv preprint arXiv:1602.04458},
year = {2016}
}