Kuo, C.-C.C.-C.KuoPai, C.-H.C.-H.PaiLin, M.-W.M.-W.LinLee, K.-H.K.-H.LeeLin, J.-Y.J.-Y.LinWang, J.J.WangChen, S.-Y.S.-Y.Chen2020-06-022020-06-02200700319007https://scholars.lib.ntu.edu.tw/handle/123456789/496485Enhancement of relativistic harmonic generation by an optically preformed periodic plasma waveguidejournal article10.1103/PhysRevLett.98.033901