Crossover from capacitive to inductive electromagnetic responses in near self-complementary metallic checkerboard patterns.
Crossover from capacitive to inductive electromagnetic responses in near self-complementary metallic checkerboard patterns.
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DOI：
10.1364/oe.22.024787
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发表时间：
2014-10
期刊：
影响因子：
3.8
通讯作者：
K. Takano;F. Miyamaru;K. Akiyama;H. Miyazaki;M. Takeda;Y. Abe;Y. Tokuda;Hiromasa Ito;M. Hangyo-M.-Ha
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文献类型：
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作者：
K. Takano;F. Miyamaru;K. Akiyama;H. Miyazaki;M. Takeda;Y. Abe;Y. Tokuda;Hiromasa Ito;M. Hangyo-M.-Ha
近自互补金属棋盘图案（MCP）的透射光谱表现出剧烈的变化时，金属正方形被带到相互接触的非接触状态。通过印刷技术制造的近自互补样品的透射光谱随着标称金属正方形尺寸的改变而显示出相当渐进的系统性变化，同时保持周期，这是由于印刷机的有限精度自然引入的随机性。光谱具有透射不变频率，这意味着光谱是两种类型光谱的叠加，其比率取决于标称平方大小。在复振幅谱的真实的和虚部中看到的相关性可以基于Kramers-Kronig关系来解释。作为一个应用程序的敏感性的MCP的透射光谱的连接的金属广场，揭示了一个光学隐藏的图案由太赫兹光束。
Transmission spectra of near-self-complementary metallic checkerboard patterns (MCPs) exhibit a drastic change when the metal squares are brought into contact with each other from a noncontact state. Transmission spectra of near-self-complementary samples, which are fabricated by printing technology, show rather gradual systematic change with changing the nominal metal square size while keeping the period because of randomness naturally introduced by the limited accuracy of the printer. The spectra have transmission-invariant frequencies, which means that the spectra are a superposition of two types of spectra, the ratio of which depends on the nominal square size. The correlation seen in the real and imaginary parts of the complex amplitude spectra can be interpreted based on the Kramers-Kronig relation. As an application of the sensitiveness of the transmission spectrum of the MCPs to connectivity of the metal squares, the revealing of an optically hidden pattern by a terahertz beam is demonstrated.