We report on optimal control of the output energy of terahertz (THz) waves generated by optical rectification of femtosecond pulses in ZnTe crystals. An enhancement by a factor up to 2.4 is obtained with chirped pump pulses. The optimized THz wave also displays a spectral broadening. The influence of the optical pulse shaping on the pump pulse propagation, and consequently on the THz generation efficiency, is numerically investigated and discussed.
© 2013 Optical Society of America
Original Manuscript: October 18, 2013
Manuscript Accepted: November 21, 2013
Published: December 18, 2013
S. Vidal, J. Degert, M. Tondusson, E. Freysz, and J. Oberlé, "Optimized terahertz generation via optical rectification in ZnTe crystals," J. Opt. Soc. Am. B 31, 149-153 (2014)