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Temporal and spectral shaping of broadband terahertz pulses in a photoexcited semiconductor
journal contribution
posted on 2023-06-21, 06:02 authored by Mostafa Shalaby, Marco Peccianti, David G Cooke, Christoph P Hauri, Roberto MorandottiTransmission 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
Funding
Route to guided TeraHertz backscattering Inspection and Analysis : THEIA; G1308; EUROPEAN UNION; PCIG14-GA-2013-630833
History
Publication status
- Published
File Version
- Published version
Journal
Applied Physics LettersISSN
0003-6951Publisher
American Institute of PhysicsExternal DOI
Issue
5Volume
106Page range
1110Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Atomic, Molecular and Optical Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes