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arXiv · 1409.6148

Temporal and Spectral Shaping of Broadband THz Pulses in a Photoexcited Semiconductor

Mostafa Shalaby·Marco Peccianti·David G. Cooke·Christoph P. Hauri·Roberto Morandotti
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Abstract

Transmission through photoexcited semiconductors is used to temporally and spectrally shape a Terahertz pulse. By adjusting the optical pump-THz probe delay, we experimentally introduce a polar asymmetry in the pulse profile as high as 92%. To shape the spectrum, we apply the same technique after strongly chirping the Terahertz pulse. This led to significant reshaping of the spectrum with a 52% upshift of spectrum median. Pulse shaping techniques introduced here are of particular importance for temporal and spectral shape-sensitive THz nonlinear experiments.

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Mostafa Shalaby, Marco Peccianti, David G. Cooke, Christoph P. Hauri, Roberto Morandotti. 2014-09-22. Temporal and Spectral Shaping of Broadband THz Pulses in a Photoexcited Semiconductor. https://doi.org/10.1063/1.4907635

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