Chinese Optics Letters, Volume. 12, Issue 8, 081602(2014)

Focusing microwaves into subwavelength dimensions with a half-cylindrical hyperlens based on split ring resonators

Guoxing Zheng, Zile Li, Guishan Yuan, Ruiying Zhang, Ping'an He, Xiaochun Dong, Jun Cui, Jiangnan Zhao, Jianping Yun, and Song Li

Hyperlenses based on metamaterials can be applied to subwavelength imaging in the lightwave band. In this letter, we demonstrate both through simulations and experimentally verified results that our proposed half-cylindrical shaped hyperlens can be used for super-resolution microwave focusing in a TE mode. Based on split ring resonators, the hyperlens satisfies a hyperbolic dispersion relationship. Simulations demonstrate that the focused spot size and position are insensitive to the rotation angle of the hyperlens around its geometric center. Experimental results show that a focused spot size 1/3 of the vacuum wavelength is achieved in the microwave band.

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Guoxing Zheng, Zile Li, Guishan Yuan, Ruiying Zhang, Ping'an He, Xiaochun Dong, Jun Cui, Jiangnan Zhao, Jianping Yun, Song Li. Focusing microwaves into subwavelength dimensions with a half-cylindrical hyperlens based on split ring resonators[J]. Chinese Optics Letters, 2014, 12(8): 081602

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Paper Information

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Received: Mar. 28, 2014

Accepted: Apr. 23, 2014

Published Online: Jul. 31, 2014

The Author Email:

DOI:10.3788/col201412.081602

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