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arXiv 0901.4601physics.optics
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ε-近零通道隧道的非线性控制

Nonlinear Control of Tunneling Through an Epsilon-Near-Zero Channel

David A. Powell, Andrea Alu, Brian Edwards, Ashkan Vakil, Yuri S. Kivshar, Nader Engheta

摘要:

ε近零(ENZ)隧穿现象允许波通过窄通道的完全传输,即使在存在强几何失配的情况下也是如此。在这里,我们实验证明了非线性控制的ENZ隧穿的外部字段,以及自调制的传输共振由于入射波。使用截止频率附近的波导段作为ENZ系统,我们引入了一个具有可调谐和非线性电容的二极管来演示这两种效果。我们的研究结果证实了早期的理论思想,使用ENZ通道的介电传感,其潜在的可调慢光结构的应用。

英文摘要:

The epsilon-near-zero (ENZ) tunneling phenomenon allows full transmission of waves through a narrow channel even in the presence of a strong geometric mismatch. Here we experimentally demonstrate nonlinear control of the ENZ tunneling by an external field, as well as self-modulation of the transmission resonance due to the incident wave. Using a waveguide section near cut-off frequency as the ENZ system, we introduce a diode with tunable and nonlinear capacitance to demonstrate both of these effects. Our results confirm earlier theoretical ideas on using an ENZ channel for dielectric sensing, and their potential applications for tunable slow-light structures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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