AbdollahRamezani Sajjad, Arik Kamalodin, Farajollahi Saeed, Khavasi Amin, Kavehvash Zahra
Opt Lett. 2015 Nov 15;40(22):5383-6. doi: 10.1364/OL.40.005383.
We propose an unprecedented transmit-array configuration which can mold the incident beam by modulating phase and amplitude wavefronts. The transmit-array is composed of patterned graphene metasurfaces as shunt admittance sheets. Thanks to the exceptional features of graphene such as tunability, thinness, low loss, and high confinement of graphene plasmons, the proposed subwavelength structure passes strict touchstones for nano-photonic and opto-electronic applications. Two flat-optics functionalities, i.e., focusing and splitting, are realized by means of the proposed configuration.
我们提出了一种前所未有的发射阵列配置，它可以通过调制相位和幅度波前来塑造入射光束。该发射阵列由图案化的石墨烯超表面作为并联导纳片组成。由于石墨烯具有诸如可调性、薄度、低损耗以及石墨烯等离子体激元的高限制等特殊特性，所提出的亚波长结构通过了纳米光子学和光电子应用的严格检验标准。借助所提出的配置实现了两种平面光学功能，即聚焦和分光。
