%0 Journal Article
%A Cheng, Siqi
%A Chatterjee, Gourab
%A Tellkamp, Friedjof
%A Lang, Tino
%A Ruehl, Axel
%A Hartl, Ingmar
%A Dwayne Miller, R. J.
%T Compact Ho:YLF-pumped ZnGeP<sub>2</sub> -based optical parametric amplifiers tunable in the molecular fingerprint regime
%J Optics letters
%V 45
%N 8
%@ 1539-4794
%C Washington, DC
%I Soc.
%M PUBDB-2020-05288
%P 2255
%D 2020
%Z Waiting for fulltext
%X 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-Gaussiantemporal 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 closelycorroborate 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ pmid:32287207
%U <Go to ISI:>//WOS:000526401600033
%R 10.1364/OL.389535
%U https://bib-pubdb1.desy.de/record/453490