Temporal and spectral shaping of broadband terahertz pulses in a photoexcited semiconductor

Transmission through a photoexcited semiconductor is used to temporally and spectrally shape a terahertz (THz) pulse. By adjusting the optical pump-THz probe delay, we experimentally introduce a polar asymmetry in the pulse profile as large as 92%. To shape the spectrum, we apply the same technique after strongly chirping the terahertz pulse. This leads to significant reshaping of the spectrum resulting in a 52% upshift of its median value. The pulse shaping techniques introduced here are of particular importance for temporal and spectral shape-sensitive THz nonlinear experiments. (C) 2015 AIP Publishing LLC.


Published in:
Applied Physics Letters, 106, 5, 051110
Year:
2015
Publisher:
Melville, Amer Inst Physics
ISSN:
1077-3118
Laboratories:




 Record created 2015-03-12, last modified 2018-03-18


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