Volume 69, Number 4, February 2005
|Page(s)||544 - 548|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||14 January 2005|
Experimental realization of breaking diffraction limit by planar negative-index metamaterials in free space
Department of Physics, National Cheng Kung University - Tainan 701, Taiwan
2 Department of Photonics & Institute of Electro-Optical Engineering National Chiao Tung University - Hsinchu 300, Taiwan
3 Microelectronics and Information System Research Center National Chiao Tung University - Hsinchu 300, Taiwan
4 Agilent Technol Inc - Jhongli, Taoyuan 320, Taiwan
Accepted: 10 December 2004
The sharpness of the image formed by a conventional lens is always limited by the wavelength of light. Recently, Pendry proposed a superlens, with a negative refractive index, such that the resolution is not limited by wavelength. Herein, we report direct experimental evidence of Pendry's superlens breaking the diffraction limit, in the microwave range of the X band (8–12), with a periodic array of split ring resonators and continuous wires; i.e. a meta-material with negative index of refraction.
PACS: 42.79.Bh – Lenses, prisms and mirrors / 78.20.Ci – Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity) / 41.20.Jb – Electromagnetic wave propagation; radiowave propagation
© EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.