In-plane hyperbolic polariton tuners in terahertz and long-wave infrared regimes.
In-plane hyperbolic polariton tuners in terahertz and long-wave infrared regimes.
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DOI：
10.1038/s41467-023-38214-0
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发表时间：
2023-05-11
影响因子：
16.6
通讯作者：
Deng, Shaozhi
中科院分区：
文献类型：
--
作者：
Huang, Wuchao;Folland, Thomas G. G.;Sun, Fengsheng;Zheng, Zebo;Xu, Ningsheng;Xing, Qiaoxia;Jiang, Jingyao;Chen, Huanjun;Caldwell, Joshua D. D.;Yan, Hugen;Deng, Shaozhi
太赫兹（THz）和长波红外（LWIR）技术发展的主要瓶颈之一是传统材料有限的本征响应。范德华半导体的双曲声子极化激元 (HPhP) 与太赫兹和长波红外辐射强烈耦合。然而，光子−极化子动量的不匹配使得 HPhP 的远场激发具有挑战性。在这里，我们提出了一种面内双曲极化子调谐器，该调谐器基于将范德华半导体（此处为 α-MoO3）图案化为带状阵列。我们证明，此类调谐器直接响应远场激励，并产生品质因数高达 300 的长波红外和太赫兹谐振，这强烈依赖于图案化 α-MoO3 的面内双曲极化子。我们进一步表明，通过这种调谐器，可以实现反射和透射电磁波的强度调节以及它们的波长和偏振选择。我们的结果可以帮助太赫兹和长波红外小型化设备的开发。 α-MoO3 晶体中的面内双曲声子极化激元有望用于太赫兹 (THz) 和长波红外 (LWIR) 光子应用，但它们与远场激发的耦合仍然具有挑战性。在这里，作者报告了 α-MoO3 带状阵列的制造，该阵列可用作可调谐太赫兹和长波红外滤波器和偏振器。
One of the main bottlenecks in the development of terahertz (THz) and long-wave infrared (LWIR) technologies is the limited intrinsic response of traditional materials. Hyperbolic phonon polaritons (HPhPs) of van der Waals semiconductors couple strongly with THz and LWIR radiation. However, the mismatch of photon − polariton momentum makes far-field excitation of HPhPs challenging. Here, we propose an In-Plane Hyperbolic Polariton Tuner that is based on patterning van der Waals semiconductors, here α-MoO3, into ribbon arrays. We demonstrate that such tuners respond directly to far-field excitation and give rise to LWIR and THz resonances with high quality factors up to 300, which are strongly dependent on in-plane hyperbolic polariton of the patterned α-MoO3. We further show that with this tuner, intensity regulation of reflected and transmitted electromagnetic waves, as well as their wavelength and polarization selection can be achieved. Our results can help the development of THz and LWIR miniaturized devices. In-plane hyperbolic phonon polaritons in α-MoO3 crystals hold promise for terahertz (THz) and longwave infrared (LWIR) photonic applications, but their coupling with far-field excitations remains challenging. Here, the authors report the fabrication of α-MoO3 ribbon arrays that can be applied as tunable THz and LWIR filters and polarizers.
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影响因子：
16.6
作者：
Caldwell, Joshua D.;Kretinin, Andrey V.;Novoselov, Kostya S.
通讯作者：
Novoselov, Kostya S.
影响因子：
16.6
作者：
Alfaro-Mozaz, F. J.;Rodrigo, S. G.;Nikitin, A. Y.
通讯作者：
Nikitin, A. Y.
影响因子：
38.3
作者：
Caldwell, Joshua D.;Vurgaftman, Igor;Reinecke, Thomas L.
通讯作者：
Reinecke, Thomas L.
影响因子：
10.8
作者：
Duan, Jiahua;Capote-Robayna, Nathaniel;Alonso-Gonzalez, Pablo
通讯作者：
Alonso-Gonzalez, Pablo
影响因子：
19.4
作者：
Autore, Marta;Li, Peining;Hillenbrand, Rainer
通讯作者：
Hillenbrand, Rainer