Journal Article

PUBDB-2020-05288

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Compact Ho:YLF-pumped ZnGeP$_{2}$ -based optical parametric amplifiers tunable in the molecular fingerprint regime

Cheng, S.CFEL*MPG* ; Chatterjee, G.CFEL*MPG* ; Tellkamp, F.CFEL* ; Lang, T.DESY* ; Ruehl, A.Extern* ; Hartl, I. (Corresponding author)DESY* ; Dwayne Miller, R. J. (Corresponding author)

2020
Soc. Washington, DC

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Please use a persistent id in citations: doi:10.1364/OL.389535

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-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.

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Contributing Institute(s):

1. Laser Forschung und Entwicklung (FS-LA)
2. MPSD (CFEL-SSUMP)
3. MPSD (CFEL-ARD)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2020

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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