{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Vicario C"],"funding":["Swiss National Science Foundation"],"pagination":["14394"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC4585874"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["5"],"pubmed_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."],"journal":["Scientific reports"],"pubmed_title":["Intense, carrier frequency and bandwidth tunable quasi single-cycle pulses from an organic emitter covering the Terahertz frequency gap."],"pmcid":["PMC4585874"],"funding_grant_id":["128493"],"pubmed_authors":["Kwon OP","Hauri CP","Vicario C","Jazbinsek M","Lee SH","Monoszlai B"],"additional_accession":[]},"is_claimable":false,"name":"Intense, carrier frequency and bandwidth tunable quasi single-cycle pulses from an organic emitter covering the Terahertz frequency gap.","description":"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.","dates":{"release":"2015-01-01T00:00:00Z","publication":"2015 Sep","modification":"2025-04-21T20:23:41.847Z","creation":"2019-03-27T01:59:07Z"},"accession":"S-EPMC4585874","cross_references":{"pubmed":["26400005"],"doi":["10.1038/srep14394"]}}