Highly efficient ultraviolet high-harmonic generation from epsilon-near-zero indium tin oxide films
Highly efficient ultraviolet high-harmonic generation from epsilon-near-zero indium tin oxide films
复制标题
ε 近零氧化铟锡薄膜高效产生紫外高次谐波
DOI：
10.1364/prj.414570
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发表时间：
2021-02
影响因子：
7.6
通讯作者：
张怀金
中科院分区：
文献类型：
--
作者：
WENDONG TIAN;FEI LIANG;DAZHI LU;HAOHAI YU;张怀金
High-harmonic generation in the ultraviolet region is promising for wireless technology used for communications and sensing. However, small high-order nonlinear coefficients prevent us from obtaining high conversion efficiency and functional photonic devices. Here, we show highly efficient ultraviolet harmonic generation extending to the fifth order directly from an epsilon-near-zero indium tin oxide (ITO) film. The real part of the annealed ITO films was designed to reach zero around 1050 nm, matching with the central wavelength of an Yb-based fiber laser, and the internal driving electric field was extremely enhanced. A high energy conversion efficiency of 10−4 and 10−6 for 257.5 nm (fourth-order) and 206 nm (fifth-order) ultraviolet harmonic generation was obtained, which is at least 2 orders of magnitude higher than early reports. Our results demonstrate a new route for overcoming the inefficiency problem and open up the possibilities of compact solid-state high-harmonic generation sources at nanoscale.
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影响因子：
4
作者：
N. Ueda;H. Kawazoe;Yuichi Watanabe;M. Takata;M. Yamane;K. Kubodera
通讯作者：
N. Ueda;H. Kawazoe;Yuichi Watanabe;M. Takata;M. Yamane;K. Kubodera
影响因子：
4.6
作者：
Kaipurath RM;Pietrzyk M;Caspani L;Roger T;Clerici M;Rizza C;Ciattoni A;Di Falco A;Faccio D
通讯作者：
Faccio D
影响因子：
2.9
作者：
Ghimire, Shambhu;DiChiara, Anthony D.;Reis, David A.
通讯作者：
Reis, David A.
DOI：
10.1109/cleopr.2007.4391210
发表时间：
2007-08
期刊：
2007 Conference on Lasers and Electro-Optics - Pacific Rim
影响因子：
--
作者：
F. Krausz
通讯作者：
F. Krausz
影响因子：
2.1
作者：
Chen, C. T.;Wang, G. L.;Xu, Z. Y.
通讯作者：
Xu, Z. Y.