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  Compact Ho:YLF-pumped ZnGeP2-based optical parametric amplifiers tunable in the molecular fingerprint regime

Cheng, S., Chatterjee, G., Tellkamp, F., Lang, T., Ruehl, A., Hartl, I., et al. (2020). Compact Ho:YLF-pumped ZnGeP2-based optical parametric amplifiers tunable in the molecular fingerprint regime. Optics Letters, 45(8), 2255-2258. doi:10.1364/OL.389535.

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https://dx.doi.org/10.1364/OL.389535 (Verlagsversion)
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 Urheber:
Cheng, S.1, 2, Autor           
Chatterjee, G.1, Autor           
Tellkamp, F.3, Autor           
Lang, T.4, Autor
Ruehl, A.5, 6, Autor
Hartl, I.4, Autor
Miller, R. J. D.1, 7, Autor           
Affiliations:
1Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938288              
2Department of Physics, University of Hamburg, ou_persistent22              
3Machine Physics, Scientific Service Units, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2074322              
4Deutsches Elektronen-Synchrotron DESY, ou_persistent22              
5Leibniz University Hannover, QUEST-Leibniz-Research School, Institute of Quantum Optics, ou_persistent22              
6Laser Zentrum Hannover e.V., ou_persistent22              
7Departments of Chemistry and Physics, University of Toronto, ou_persistent22              

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 Zusammenfassung: We report on a compact mid-infrared laser architecture, comprising a chain of ZnGeP2-based optical parametric amplifiers (OPAs), which afford a higher energy yield (∼<60µJ at 1 kHz) compared to most conventional OPA gain media transparent in the 2–8-µm wavelength range. Specifically, our OPA scheme allows ready tunability in the molecular fingerprint regime and is tailored for strong-field excitation and coherent control of both stretch and bend (or torsional) vibrational modes in molecules. The OPAs are pumped and directly seeded (via supercontinuum generation) by a 2-µm, 3-ps Ho:YLF regenerative amplifier. The compressibility of the OPA output is demonstrated by a representative measurement of the near-Gaussian temporal profile of a dispersion-compensated 105-fs idler pulse at a central wavelength of 5.1 µm, corresponding to ∼6 optical cycles. Detailed numerical simulations closely corroborate the experimental measurements, providing a benchmark and a platform to further explore the parameter space for future design, optimization, and implementation of high-energy, ultrafast, mid-infrared laser schemes.

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Sprache(n): eng - English
 Datum: 2020-03-072020-02-032020-03-092020-03-102020-04-09
 Publikationsstatus: Erschienen
 Seiten: 4
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1364/OL.389535
 Art des Abschluß: -

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Projektname : The authors thank Hendrik Schikora and Jan-Philipp Leimkohl (MPSD) for technical support and Christoph Mahnke, Sarper Salman, and Yizhou Liu (DESY) for assistance with the oscillator maintenance.
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Quelle 1

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Titel: Optics Letters
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Washington : Optical Society of America
Seiten: 4 Band / Heft: 45 (8) Artikelnummer: - Start- / Endseite: 2255 - 2258 Identifikator: ISSN: 0146-9592
CoNE: https://pure.mpg.de/cone/journals/resource/954925474435