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首页> 外文期刊>Physical Review X >Temperature-Controlled Chameleonlike Cloak
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Temperature-Controlled Chameleonlike Cloak

机译：温度控制的变色件斗篷

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Invisibility cloaking based on transformation optics has brought about unlimited space for reverie. However, the design and fabrication of transformation-optics-based cloaks still remain fairly challenging because of the complicated, even extreme, material prescriptions, including its meticulously engineered anisotropy, inhomogeneity and singularity. And almost all the state-of-the-art cloaking devices work within a narrow and invariable frequency band. Here, we propose a novel mechanism for all-dielectric temperature-controllable cloaks. A prototype device was designed and fabricated with SrTiO 3 ferroelectric cuboids as building blocks, and its cloaking effects were successfully demonstrated, including its frequency-agile invisibility by varying temperature. It revealed that the predesignated cloaking device based on our proposed strategy could be directly scaled in dimensions to operate at different frequency regions, without the necessity for further efforts of redesign. Our work opens the door towards the realization of tunable cloaking devices for various practical applications and provides a simple strategy to readily extend the cloaking band from microwave to terahertz regimes without the need for reconfiguration.
机译：基于转化光学的隐形是对遐想的无限空间带来了无限空间。然而，由于复杂，甚至极端，材料处方，包括其精心设计的各向异性，不均匀性和奇点，因此，基于转换光学的斗篷的设计和制造仍然相当挑战。并且几乎所有最先进的粘附设备都在窄且不变的频段内工作。在这里，我们提出了一种新的全介电温度可控斗篷的新机制。用SRTIO 3铁电长方体设计和制造原型装置作为构建块，并成功地证明了其固化作用，包括通过不同温度的频率敏捷隐形。它揭示了基于我们所提出的策略的预测包装装置可以直接以不同频率区域运行的尺寸，而无需进一步重新设计的必要性。我们的作品为各种实际应用实现可调谐粘附装置，提供了一种简单的策略，可以容易地将来自微波的粘附带扩展到太赫兹制度，而无需重新配置。

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