| 有源超常材料的研究及应用 |
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| 引用本文： | 丁红梅.有源超常材料的研究及应用[J].电子设计工程,2011,19(20):153-156. |
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| 作者姓名： | 丁红梅 |
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| 作者单位： | 电子科技大学物理电子学院,四川成都,610054 |
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| 摘 要： | 超常材料是具有自然材料所不具备的超常物理性质的一类人工电磁材料。由于本身具有损耗大、工作带宽窄等缺点严重限制了其应用研究,尤其是在太赫兹和光波频段。在金属微结构单元结合某种非线性材料(半导体、量子结、量子阱等)构成复合型超常材料,或者改变超常材料的外部激励(如温度、光激励、电磁场等)可以控制其整体特性,实现抵消材料损耗、调控它对电磁波的响应强度和频谱范围。本论文总结了有源超常材料在各频段的研究进展及应用。
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| 关 键 词： | 有源超常材料 宽频带 低损耗 微结构 半导体 |
Research and their applications of active metamaterials |
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| DING Hong-mei.Research and their applications of active metamaterials[J].Electronic Design Engineering,2011,19(20):153-156. |
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| Authors: | DING Hong-mei |
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| Affiliation: | DING Hong-mei(College of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | Metamaterials are artificially engineered electromagnetic structures with novel electromagnetic properties that are not available in natural materials. The performance of metamaterials applications are significantly limited by the inherent strong energy dissipation and narrow bandwidth, especially in the THz and optical wavelength ranges. By combining metamaterials with nonlinear materials such as semiconductor, quantum dots, and quantum wells embedded into the metal nanostructures or by changing the external stimuli （temperature, light excitation, electromagnetic field） its overall characteristics can be controlled to compensate dielectric loss, steer its resonance response and broad frequency range. Progress on the research of active metamaterials at different frequency bands is summarized |
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| Keywords: | active metamaterials broadband low-loss nanostructures semiconductor |
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