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Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Intense, carrier frequency and bandwidth tunable quasi single-cycle pulses from an organic emitter covering the Terahertz frequency gap
Authors : Vicario, C.
Monoszlai, B.
Jazbinsek, M.
Lee, S.-H.
Kwon, O.-P.
Hauri, C. P.
DOI : 10.21256/zhaw-3987
Published in : Scientific Reports
Volume(Issue) : 5
Issue : 14394
Issue Date: 24-Sep-2015
Publisher / Ed. Institution : Nature Publishing Group
ISSN: 2045-2322
Language : English
Subject (DDC) : 621.3: Electrical engineering and electronics
Abstract: In Terahertz (THz) science, one of the long-standing challenges has been the formation of spectrally dense, single-cycle pulses with tunable duration and spectrum across the frequency range of 0.1-15 THz (THz gap). This frequency band, lying between the electronically and optically accessible spectra hosts important molecular fingerprints and collective modes which cannot be fully controlled by present strong-field THz sources. We present a method that provides powerful single-cycle THz pulses in the THz gap with a stable absolute phase whose duration can be continuously selected between 68 fs and 1100 fs. The loss-free and chirp-free technique is based on optical rectification of a wavelength-tunable pump pulse in the organic emitter HMQ-TMS that allows for tuning of the spectral bandwidth from 1 to more than 7 octaves over the entire THz gap. The presented source tunability of the temporal carrier frequency and spectrum expands the scope of spectrally dense THz sources to time-resolved nonlinear THz spectroscopy in the entire THz gap. This opens new opportunities towards ultrafast coherent control over matter and light.
Fulltext version : Published version
License (according to publishing contract) : CC BY 4.0: Attribution 4.0 International
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Appears in Collections:Publikationen School of Engineering

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