Title:
Subwavelength microwave imaging using an array of parallel conducting wires as a lens
Author(s):
Pavel A. Belov, Yang Hao and Sunil Sudhakaran
Source:
PHYSICAL REVIEW
Vol./Issue/Date:
B 73, 033108 (2006)
Year:
2006
Page(s):
1-4
Keywords:
Abstract:
An original realization of a lens capable of transmitting images with subwavelength resolution is proposed.
The lens is formed by an array of parallel conducting wires and effectively operates as a telegraph which
captures a distribution of the electric field at the front interface of the lens and transmits it to the back side
without distortions. This regime of operation is called canalization and is inherent in flat lenses formed by
electromagnetic crystals. The theoretical estimations are supported by numerical simulations and experimental
verification. The subwavelength resolution of /15 and 18% bandwidth of operation are demonstrated at
gigahertz frequencies. The proposed lens is capable of transporting subwavelength images without distortion to
nearly unlimited distances since the influence of losses to the lens operation is negligibly small.
Document:
Reference Id:
297
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