气体高次谐波产生（Atomic or gas HHG） 高次谐波，顾名思义就是整数倍于原来驱动频率的谐波。 高次谐波可以通过高功率Ti-sapphire(钛宝石)飞秒激光与物质相互作用来产生。

High-harmonic generation (HHG) is a non-linear process during which a target (gas, plasma, solid or liquid sample) is illuminated by an intense laser pulse. Under such conditions, the sample …

2018年9月13日 · High–harmonic generation (HHG) in gases has been the main enabling technology of attosecond science since its discovery. Recently, HHG from solids has been …

2020年9月14日 · High harmonic generation (HHG) is an extremely nonlinear effect generating coherent broadband radiation and pulse durations reaching attosecond timescales....

汞 （拼音：gǒng， 注音：ㄍㄨㄥˇ， 粤拼：hung3），俗稱 水银，是一種 化學元素，其 化學符號 为 Hg， 原子序數 为80， 原子量 為 200.592 u。 汞在 元素周期表 中位於 d區，是密度大、 …

In accordance with the Joint Travel Regulations (JTR), paragraph (par.) 051402, household goods (HHG) weight allowances can be administratively reduced at a permanent duty station (PDS) …

2023年10月4日 · High harmonic generation (HHG) from gas-phase atoms (or molecules) has opened up a new frontier in ultrafast optics, where attosecond time resolution and angstrom …

2022年1月28日 · We provide an overview ranging from a detailed description of different approaches to calculating the microscopic dynamics and how these are intricately connected …

High-order harmonic generation (HHG) in solids, the nonlinear upconversion of coherent radiation resulting from the interaction of a strong and short laser pulse with bulk matter, has come of …

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