A mid-infrared biaxial hyperbolic van der Waals crystal

Zebo Zheng(Sun Yat-sen University), Ningsheng Xu(Sun Yat-sen University), Stefano Luigi Oscurato(Harvard University), Michele Tamagnone(Harvard University), Fengsheng Sun(Sun Yat-sen University), Yinzhu Jiang(Sun Yat-sen University), Yanlin Ke(Sun Yat-sen University), Jianing Chen(Collaborative Innovation Center of Quantum Matter), Wuchao Huang(Sun Yat-sen University), William L. Wilson(Harvard University), Antonio Ambrosio(Harvard University), Shaozhi Deng(Sun Yat-sen University), Huanjun Chen(Sun Yat-sen University)
Science Advances
May 3, 2019
Cited by 410Open Access
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Abstract

is a biaxial hyperbolic crystal with three different Reststrahlen bands, each corresponding to a different crystalline axis. These findings can pave the way toward a new paradigm to manipulate and confine light in planar photonic devices.


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