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The Direction Switching Control of Electromagnetic Waves Based on All-dielectric Metamaterials

机译:基于全介电超材料的电磁波方向切换控制

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摘要

Electromagnetic waves control is becoming more and more urgent for important applications in communication and military fields. Studies have shown that it is possible to achieve reflection and refraction control of electromagnetic waves by introducing phase gradient. Wavefront control of electromagnetic waves can be achieved with metamaterials devices. However, metamaterials devices have to be diversified and enhance their capabilities to catch up the rapidly expanding demand on dynamic control currently. In this paper, we design a dynamic-modulated all-dielectric microwave control device to reconstruct the phase profile by filling different dielectric constants of media into it. As a result, the deflection direction of the electromagnetic waves, including whether the deflection occurs or not, can be controlled by this device flexibly. The device with such dynamic modulation function has potential application in the design and development of other functional devices or system, such as switches, beam shaping and imaging systems.
机译:对于通信和军事领域中的重要应用,电磁波控制正变得越来越紧迫。研究表明,通过引入相位梯度,可以实现电磁波的反射和折射控制。电磁波的波前控制可通过超材料设备实现。但是,超材料设备必须多样化并增强其功能,以赶上当前对动态控制快速增长的需求。在本文中,我们设计了一种动态调制的全介电微波控制装置,通过在其中填充介质的不同介电常数来重建相位轮廓。结果,可以通过该装置灵活地控制电磁波的偏转方向,包括是否发生偏转。具有这种动态调制功能的设备在其他功能设备或系统的设计和开发中具有潜在的应用,例如开关,光束整形和成像系统。

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    Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516Jungong Rd, Shanghai 200093, Peoples R China;

    Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516Jungong Rd, Shanghai 200093, Peoples R China;

    Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516Jungong Rd, Shanghai 200093, Peoples R China;

    Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516Jungong Rd, Shanghai 200093, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    All-dielectric metamaterials; beam shaping; dynamic switching;

    机译:全介电超材料;梁塑造;动态开关;

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