Direct substitution method for studying second harmonic generation in arbitrary 下载 zch57915 18 0 PDF 2021-02-27 10:02:46 Direct-substitution method for studying second harmonic generation in arbitrary optical superlattices 立即下载 微信扫一扫:分享 微信里点“发现”,扫一下 二维码便可将本文分享至朋友圈。