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

Shalaby, Mostafa, Peccianti, Marco, Cooke, David G, Hauri, Christoph P and Morandotti, Roberto (2015) Temporal and spectral shaping of broadband terahertz pulses in a photoexcited semiconductor. Applied Physics Letters, 106 (5). p. 1110. ISSN 0003-6951

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Abstract

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

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Atomic, Molecular and Optical Physics Research Group
Subjects: Q Science > QC Physics > QC0350 Optics. Light
T Technology > TA Engineering (General). Civil engineering (General) > TA1501 Applied optics. Photonics
Depositing User: Marco Peccianti
Date Deposited: 17 Jan 2017 10:16
Last Modified: 06 Mar 2017 16:57
URI: http://sro.sussex.ac.uk/id/eprint/66231

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Project NameSussex Project NumberFunderFunder Ref
Route to guided TeraHertz backscattering Inspection and Analysis : THEIAG1308EUROPEAN UNIONPCIG14-GA-2013-630833