首页|Orientation and ellipticity dependence of high-order harmonic generation in nanowires

Orientation and ellipticity dependence of high-order harmonic generation in nanowires

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It has been predicted that high-order harmonic generation(HHG)in nanowires has the potential to scale up photon energy and harmonic yield.However,studies on HHG in nanowires are still theoretical and no relevant experimental results have been reported as yet.Our experimental observation of the high-order harmonic in cadmium sulfide nanowires(CdS NWs)excited by a mid-infrared laser is,to our knowledge,the first of such study,and it verifies some of the theoretical results.Our experimental results show that the observed harmonics are strongest when a pump laser is parallel to the nanowires.Therefore,the theoretical prediction that harmonics are strongest under the nanowires parallel to the laser field is confirmed experimentally,and this can be used to determine the orientation of the nanowire.In addition,harmonics are sensitive to the variation of pump light ellipticities.This orientation dependence opens new opportunities to access the ultrafast and strong-field physics of nanowires.

high-order harmonic generationorientation dependenceellipticity dependencenanowires

Fan Yang、Yinghui Zheng、Luyao Zhang、Xiaochun Ge、Zhinan Zeng

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State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金Youth Innovation Promotion Association of the Chinese Academy Sciences,and the Strategic Priority Research Program of the Ch

91950203118743746169022311774363XDB16

2022

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDCSCDSCIEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2022.31(4)
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