Compact Ho:YLF-pumped ZnGeP2-based optical parametric amplifiers tunable in the molecular fingerprint regime
- verfasst von
- Siqi Cheng, Gourab Chatterjee, Friedjof Tellkamp, Tino Lang, Axel Ruehl, Ingmar Hartl, R. J.Dwayne Miller
- 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 (≤60 μJ 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.
- Organisationseinheit(en)
-
QUEST Leibniz Forschungsschule
- Externe Organisation(en)
-
Universität Hamburg
Deutsches Elektronen-Synchrotron (DESY)
University of Toronto
Laser Zentrum Hannover e.V. (LZH)
Max-Planck-Institut für Struktur und Dynamik der Materie
- Typ
- Artikel
- Journal
- Optics letters
- Band
- 45
- Seiten
- 2255-2258
- Anzahl der Seiten
- 4
- ISSN
- 0146-9592
- Publikationsdatum
- 09.04.2020
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Atom- und Molekularphysik sowie Optik
- Elektronische Version(en)
-
https://doi.org/10.1364/OL.389535 (Zugang:
Geschlossen)
