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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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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-0DC5-E Version Permalink: http://hdl.handle.net/21.11116/0000-0006-0DD2-F
Genre: Journal Article

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https://dx.doi.org/10.1364/OL.389535 (Publisher version)
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 Creators:
Cheng, S.1, 2, Author              
Chatterjee, G.1, Author              
Tellkamp, F.3, Author              
Lang, T.4, Author
Ruehl, A.5, 6, Author
Hartl, I.4, Author
Miller, R. J. D.1, 7, Author              
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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 Abstract: 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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Language(s): eng - English
 Dates: 2020-03-072020-02-032020-03-092020-03-102020-04-09
 Publication Status: Published in print
 Pages: 4
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1364/OL.389535
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Title: Optics Letters
Source Genre: Journal
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Publ. Info: Washington : Optical Society of America
Pages: 4 Volume / Issue: 45 (8) Sequence Number: - Start / End Page: 2255 - 2258 Identifier: ISSN: 0146-9592
CoNE: https://pure.mpg.de/cone/journals/resource/954925474435