title: Widely tunable in the mid-IR BaGa4Se7optical parametric oscillator pumped at 1064  nm.
abstract: A BaGa4Se7nanosecond optical parametric oscillator (OPO) shows extremely wide idler tunability in the mid-IR (2.7-17 μm) under 1.064 μm pumping. The ∼10  ns pulses at ∼7.2  μm have an energy of 3.7 mJ at 10 Hz. The pump-to-idler conversion efficiency for this wavelength reaches 5.9% with a slope of 6.5% corresponding to a quantum conversion efficiency or pump depletion of 40%.
authors.forename: Nadezhda Y
authors.initials: NY
authors.lastname: Kostyukova
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Boyko
authors.forename: Valeriy
authors.initials: V
authors.lastname: Badikov
authors.forename: Dmitrii
authors.initials: D
authors.lastname: Badikov
authors.forename: Galina
authors.initials: G
authors.lastname: Shevyrdyaeva
authors.forename: Vladimir
authors.initials: V
authors.lastname: Panyutin
authors.forename: Georgi M
authors.initials: GM
authors.lastname: Marchev
authors.forename: Dmitry B
authors.initials: DB
authors.lastname: Kolker
authors.forename: Valentin
authors.initials: V
authors.lastname: Petrov