Few-cycle 65-µJ pulses at 11.4 µm for ultrafast nonlinear longwave-infrared spectroscopy
dc.bibliographicCitation.firstPage | 1303 | |
dc.bibliographicCitation.issue | 11 | |
dc.bibliographicCitation.volume | 9 | |
dc.contributor.author | Fuertjes, Pia | |
dc.contributor.author | Bock, Martin | |
dc.contributor.author | Grafenstein, Lorenz von | |
dc.contributor.author | Ueberschaer, Dennis | |
dc.contributor.author | Griebner, Uwe | |
dc.contributor.author | Elsaesser, Thomas | |
dc.date.accessioned | 2023-04-04T08:15:20Z | |
dc.date.available | 2023-04-04T08:15:20Z | |
dc.date.issued | 2022 | |
dc.description.abstract | Low-energy excitations can provide insight into the basic ultrafast nonequilibrium dynamics of condensed matter. High-energy femtosecond pulses in the long-wavelength infrared are required to induce such processes, and can be generated in an optical parametric chirped pulse amplification (OPCPA) system comprising three GaSe stages. A femtosecond Cr:ZnS laser serves as the front-end, providing the seed for the 2.0-µm pump and the 2.4-µm signal pulses without nonlinear conversion processes. The OPCPA system is pumped at 2.05 µm by a picosecond Ho:YLF regenerative amplifier at a 1-kHz repetition rate. The recompressed idler pulses at 11.4 µm have a duration of 185 fs and an unprecedented energy of 65 µJ, corresponding to a pump-to-idler conversion efficiency of 1.2%. Nonlinear transmission experiments in the range of the L2 infrared band of liquid water demonstrate the potential of the pulses for nonlinear vibrational spectroscopy of liquids and solids. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/11885 | |
dc.identifier.uri | http://dx.doi.org/10.34657/10918 | |
dc.language.iso | eng | |
dc.publisher | Washington, DC : Optical Society of America, OSA | |
dc.relation.doi | https://doi.org/10.1364/optica.472650 | |
dc.relation.essn | 2334-2536 | |
dc.relation.ispartofseries | Optica 9 (2022), Nr. 11 | eng |
dc.rights.license | Optica Open Access Publishing Agreement | |
dc.rights.uri | https://opg.optica.org/library/license_v2.cfm#VOR-OA | |
dc.subject | Conversion efficiency | eng |
dc.subject | Electromagnetic pulse | eng |
dc.subject | Gallium compounds | eng |
dc.subject | II-VI semiconductors | eng |
dc.subject | Infrared radiation | eng |
dc.subject | Infrared spectroscopy | eng |
dc.subject | Layered semiconductors | eng |
dc.subject | Optical parametric amplifiers | eng |
dc.subject | Optical pumping | eng |
dc.subject | Selenium compounds | eng |
dc.subject | Zinc Selenide | eng |
dc.subject | Zinc sulfide | eng |
dc.subject.ddc | 530 | |
dc.subject.ddc | 620 | |
dc.title | Few-cycle 65-µJ pulses at 11.4 µm for ultrafast nonlinear longwave-infrared spectroscopy | eng |
dc.type | article | |
dc.type | Text | |
dcterms.bibliographicCitation.journalTitle | Optica | |
tib.accessRights | openAccess | |
wgl.contributor | MBI | |
wgl.subject | Physik | ger |
wgl.subject | Ingenieurwissenschaften | ger |
wgl.type | Zeitschriftenartikel | ger |
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