Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals

doi:10.1038/s41467-023-42567-x

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	Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals
	Y. Z. Feng; R. K. Chen; J. B. He; L. J. Qi; Y. A. Zhang; T. Sun; X. D. Zhu; W. M. Liu; W. L. Ma; W. F. Shen; C. G. Hu; X. J. Sun; D. B. Li; R. J. Zhang; P. N. Li and S. J. Li
	2023
Source Publication	Nature Communications
Volume	14 Issue:1 Pages:8
Abstract	Birefringence is at the heart of photonic applications. Layered van derWaals materials inherently support considerable out-of-plane birefringence. How-ever, funnelling light into their small nanoscale area parallel to its out-of-plane optical axis remains challenging. Thus far, the lack of large in-plane birefringence has been a major roadblock hindering their applications. Here, we introduce the presence of broadband, low-loss, giant birefringence in a biaxialvan der Waals materials Ta2NiS5, spanning an ultrawide-band from visible to mid-infrared wavelengths of 0.3-16 mu m. The in-plane birefringence Delta n approximate to 2 and0.5 in the visible and mid-infrared ranges is one of the highest among van derWaals materials known to date. Meanwhile, the real-space propagating wave-guide modes in Ta(2)NiS(5)show strong in-plane anisotropy with a long propalgation length (>20 mu m) in the mid-infrared range. Our work may promote next-generation broadband and ultracompact integrated photonics based on vander Waals materials.
DOI	10.1038/s41467-023-42567-x
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Indexed By	sci
Language	英语
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Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/67461
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	Y. Z. Feng,R. K. Chen,J. B. He,et al. Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals[J]. Nature Communications,2023,14(1):8.
APA	Y. Z. Feng.,R. K. Chen.,J. B. He.,L. J. Qi.,Y. A. Zhang.,...&P. N. Li and S. J. Li.(2023).Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals.Nature Communications,14(1),8.
MLA	Y. Z. Feng,et al."Visible to mid-infrared giant in-plane optical anisotropy in ternary van der Waals crystals".Nature Communications 14.1(2023):8.

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中国科学院长春光学精密机械与物理研究所