Free space microwave focusing by a negative-index gradient lens

2006 ◽  
Author(s):  
T. Driscoll ◽  
D. N. Basov ◽  
P. M. Rye ◽  
S. Nemat-Nasser ◽  
D. Schurig ◽  
...  
Keyword(s):  
Free Space ◽  
Negative Index ◽  
Index Gradient

Free-space microwave focusing by a negative-index gradient lens

2006 ◽  
Vol 88 (8) ◽  
pp. 081101 ◽  
Author(s):  
T. Driscoll ◽  
D. N. Basov ◽  
A. F. Starr ◽  
P. M. Rye ◽  
S. Nemat-Nasser ◽  
...  
Keyword(s):  
Free Space ◽  
Negative Index ◽  
Index Gradient

scholarly journals Controlling Refraction Using Sub-Wavelength Resonators

2018 ◽  
Vol 8 (10) ◽  
pp. 1942
Author(s):  
Yue Chen ◽  
Robert Lipton
Keyword(s):  
Frequency Dependence ◽  
Free Space ◽  
Near Infrared ◽  
Center Frequency ◽  
Negative Index ◽  
Index Properties ◽  
Frequency Bands ◽  
Transmitted Signal ◽  
Sub Wavelength

We construct metamaterials from sub-wavelength nonmagnetic resonators and consider the refraction of incoming signals traveling from free space into the metamaterial. We show that the direction of the transmitted signal is a function of its center frequency and bandwidth. The directionality of the transmitted signal and its frequency dependence is shown to be explicitly controlled by sub-wavelength resonances that can be calculated from the geometry of the sub-wavelength scatters. We outline how to construct a medium with both positive and negative index properties across different frequency bands in the near infrared and optical regime.

Free space measured loss comparison of single and double Ring resonators for negative index media

2007 ◽  
Author(s):  
John S. Derov ◽  
Beverly W. Turchinetz ◽  
James W. Dean ◽  
Everett E. Crisman ◽  
Alvin J. Drehman
Keyword(s):  
Free Space ◽  
Ring Resonators ◽  
Negative Index ◽  
Double Ring

Experimental realization of breaking diffraction limit by planar negative-index metamaterials in free space

2005 ◽  
Vol 69 (4) ◽  
pp. 544-548 ◽  
Author(s):  
J.-S Lih ◽  
Y.-S Wang ◽  
M.-C Lu ◽  
Y.-C Huang ◽  
K.-H Chen ◽  
...  
Keyword(s):  
Free Space ◽  
Diffraction Limit ◽  
Negative Index ◽  
Experimental Realization
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