Chinese Optics Letters, Volume. 12, Issue 8, 081602(2014)
Focusing microwaves into subwavelength dimensions with a half-cylindrical hyperlens based on split ring resonators
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.
Get Citation
Copy Citation Text
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," Chin. Opt. Lett. 12, 081602 (2014)
Category:
Received: Mar. 28, 2014
Accepted: Apr. 23, 2014
Published Online: Jul. 31, 2014
The Author Email: