Localized Surface Plasmons in Nanostructured Monolayer Black Phosphorus
Localized Surface Plasmons in Nanostructured Monolayer Black Phosphorus
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DOI：
10.1021/acs.nanolett.5b05166
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发表时间：
2016-06-01
期刊：
影响因子：
10.8
通讯作者：
Aydin, Koray
中科院分区：
文献类型：
--
作者：
Liu, Zizhuo;Aydin, Koray
等离子体激元材料由于在共振频率附近强烈的光-物质相互作用而提供亚波长尺度的电场化和光限制，石墨烯最近被研究为原子薄的等离子体激元材料。用于红外和太赫兹波长。在这里，我们从理论上研究了单层纳米结构黑磷（BP）中的局部表面等离子体共振（LSPR）。使用时域有限差分模拟，我们证明了LSPR在中红外和远红外波长范围内的BP纳米粒子。和纳米贴片阵列。由于黑磷的强各向异性面内性质从其起皱的晶体结构中显现，黑磷纳米结构提供偏振相关的各向异性等离子体响应。电磁模拟表明，单层黑磷纳米结构可以强烈限制红外辐射在原子级薄的材料。黑磷可以用作高度各向异性的等离子体激元器件。
Plasmonic materials provide electric-field ization and light confinement at subwavelength scales due to strong light-matter interaction around resonance frequencies, Graphene has been recently studied-as an atomically thin plasmonic material. for infrared and terahertz wavelengths. Here, we theoretically investigate localized Surface plasmon resonances (LSPR) in a monolayer, nanostructured black phosphorus (BP). Using finite-difference time-domain simulations, we demonstrate LSPRs at mid-infrared and far-infrared wavelength regime in BP nanoribbon. and nanopatch arrays. Because of strong anisotropic in-plane properties of black phosphorus emerging from its puckered crystal structure, black phosphorus nanostructures provide polarization dependent, anisotropic plasmonic response. Electromagnetic simulations reveal that monolayer black phosphorus nanostructures can strongly confine infrared radiation in an atomically thin material. Black phosphorus can find use as a-highly anisotropic plasmonic devices.