scholarly journals On the inapplicability of a negative-phase-velocity condition as a negative-refraction condition for active materials

2009 ◽  
Vol 51 (5) ◽  
pp. 1230-1230 ◽  
Author(s):  
Akhlesh Lakhtakia ◽  
Tom G. Mackay ◽  
Joseph B. Geddes
Keyword(s):  
Phase Velocity ◽  
Negative Refraction ◽  
Negative Phase ◽  
Active Materials ◽  
Velocity Condition ◽  
Negative Phase Velocity

scholarly journals Observation of negative refraction and negative phase velocity in left-handed metamaterials

2005 ◽  
Vol 86 (12) ◽  
pp. 124102 ◽  
Author(s):  
Koray Aydin ◽  
Kaan Guven ◽  
Costas M. Soukoulis ◽  
Ekmel Ozbay
Keyword(s):  
Phase Velocity ◽  
Negative Refraction ◽  
Negative Phase ◽  
Left Handed ◽  
Negative Phase Velocity
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