期刊
OPTICS EXPRESS
卷 21, 期 5, 页码 6519-6525出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.21.006519
关键词
-
类别
资金
- SERC of the Agency for Science, Technology and Research (A*STAR) Grant (Novel Sensors and Acoustic Transducer for the Down-hole Electronic System) at the National University of Singapore [1021650084, R-263000643305]
- Academic Research Committee Fund (Nanoneedle devices for transdermal vaccine delivery) at the National University of Singapore [MOE2009-T2-2-011, R-263000598112]
This work fabricates a terahertz (THz) metamaterial device, whose structure consists of split ring resonator array/ plastic substrate/ Indium Tin Oxide (ITO) film/ liquid crystals/ ITO film/ plastic substrate. Experiment results show that the resonance of the THz metamaterial device can be enhanced as voltage is applied to the liquid crystals. The enhancement will be more significant as higher voltage applied. The resonance enhancement is attributed to the fact that the liquid crystals/ITO interfaces exhibit the large difference in terms of refractive index between the two materials in THz regime. The interfaces reflect the incident electromagnetic wave and cause the reflected wave to enhance the resonance of the metamaterials. As those frequency-tunable metamaterial devices show different resonant transmittance at different frequencies, which is undesired, the liquid crystals/ITO interfaces can improve those frequency-tunable metamaterial devices with a constant transmittance at different frequencies. (c) 2013 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据