Polarization-controlled surface plasmon holography

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• 作者：Quan Xu ; Xueqian Zhang ; Yuehong Xu ; Chunmei Ouyang ; Zhen Tian ; Jianqiang Gu ; Jensen Li ; Shuang Zhang ; Jiaguang Han and Weili Zhang
• 刊名：Laser & Photonics Reviews
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：11
• 期：1
• 全文大小：2831K
• ISSN：1863-8899

文摘

The ability of generating arbitrary surface plasmon (SP) profiles in a controllable manner is of particular interest in designing plasmonic imaging, lithography and forcing devices. During the past decades, holography has gained enormous interest and achievements in free-space three-dimensional displays. Here, by applying a two-dimensional version of holography, we experimentally demonstrate a generic method to control the SP profiles. Through controlling the orientation angles of two separated slits under circular polarization incidence, the amplitude and phase of the excited SPs can be freely manipulated, which allows direct generation of the desired SP profiles. A series of controllable SP holography schemes are theoretically and experimentally demonstrated, where the holographic SP profiles with high imaging quality can be dynamically modulated by varying the circular polarization handedness or orientation angle of linear polarization. The universality and simplicity of the proposed design strategies would offer promising opportunities for practical plasmonic applications.