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首页> 外文期刊>Optics Letters >Highly efficient optical parametric amplifier tunable from near- to mid-IR for driving extreme nonlinear optics in solids
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Highly efficient optical parametric amplifier tunable from near- to mid-IR for driving extreme nonlinear optics in solids

机译:高效的光学参数放大器可从近代可调谐,以驱动固体中的极端非线性光学器件

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We have developed a robust optical parametric amplifier (OPA) based on three-AgGaS2-crystal pumping by a Cr: Forsterite GW femtosecond laser system, generating 150 fs pulses in dual bands of 1.6-2.0 mu m (signal wave) and 3.5-5.5 mu m (idler wave). By introducing a negative prechirp to the pump, a combined efficiency in two waves of greater than 10% was achieved, with signal energy up to 110 mu J and idler energy up to 43 mu J. Operation parameters of the system (intensity up to 90 TW/cm(2)) make OPA a promising tool for driving nonlinear optical phenomena, including generation of optical harmonics and laser-induced extreme states of matter in solids and liquids. As a proof of principle, we generated harmonics up to the sixth order and sum frequencies in 5 mm thick polycrystalline ZnSe. (C) 2017 Optical Society of America
机译:我们开发了一种基于CR:Forsterite GW Femtosecond激光系统的三aggas2型泵浦的强大光学参数放大器(OPA),在1.6-2.0 mu m(信号波)和3.5-5.5的双频带中产生150个FS脉冲。 mu m(惰轮)。 通过向泵引入负面的Prechirp,实现了两波的组合效率,大于10%,信号能量高达110 mu J和惰能能量,高达43 mu J.系统的操作参数(强度高达90 TW / cm(2))使OPA成为驱动非线性光学现象的有希望的工具,包括在固体和液体中产生光学谐波和激光诱导的物质状态。 作为原理的证据,我们将谐波直到5毫米厚的多晶ZnSE中的第六阶和频率。 (c)2017年光学学会

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