Attosecond laser station<xref rid="cpb_27_7_074203fn1" ref-type="fn">*</xref><fn id="cpb_27_7_074203fn1"> <label>*</label><p>Project supported by the National Key R&D Program of China (Grant Nos. 2018YFB1107200, 2017YFC0110301, and 2017YFB0405202), Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB0703030), and the National Natural Science Foundation of China (Grant Nos. 11474002, 11674386, 61575219, and 61690221).</p></fn>

Attosecond laser station* *

Project supported by the National Key R&D Program of China (Grant Nos. 2018YFB1107200, 2017YFC0110301, and 2017YFB0405202), Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB0703030), and the National Natural Science Foundation of China (Grant Nos. 11474002, 11674386, 61575219, and 61690221).

Teng Hao¹, He Xin-Kui¹, Zhao Kun¹, Wei Zhi-Yi^{1, 2, †}

(color online) Principle of attosecond pump–probe spectroscopy.